Every Window Service We Offer in Charleston, SC
One team for every window job in Charleston — from energy-efficient windows and storm panels to commercial storefront glass.
Charleston Window Pros handles residential and commercial window projects across Charleston and the South Carolina Lowcountry. From energy-efficient windows and storm panels to commercial storefront glass, every service below is handled by our own team and backed by our workmanship guarantee.
Start on the Charleston Window Pros homepage, read what people in Charleston say on our about page, or call (844) 511-2320 and describe what you need in your own words.
Our Window Services in Charleston, SC

Energy-Efficient Windows and Storm Panels
The Board of Architectural Review says the quiet part out loud in its own adopted policy: most energy loss in an old building goes through the walls, not the glass. That one line reorders the work on a peninsula house, and it saves people a great deal of money.

Vinyl Windows
This is the page where we talk you out of the product, across half of this city. The BAR's adopted window policy contains four words with no wriggle room: no vinyl or vinyl components.

Fiberglass and Fiberglass-Clad Windows
Fiberglass is the most misunderstood frame in this market, because where it is allowed is not where people assume. The BAR's district and age matrix does not treat it as a universal upgrade.

Wood and Clad-Wood Windows
This is the frame the districts are written around, and the vocabulary matters more than the brand. The policy distinguishes three grid types and treats them as different products.

Aluminum and Steel Windows
Aluminum and steel occupy an odd position here. Elsewhere in the fleet these are the frames people are talked out of.

Double-Hung Sash Windows
The double-hung is the default window of this city and the one we are asked about most. It is also the one where the gap between a repair and a replacement is widest, which is exactly why the adopted policy requires evidence before it will accept the second.

Casement and Awning Windows
Casements seal better than anything else you can buy. The sash pulls into a compression gasket all the way round, so air infiltration numbers are the best in the catalog.

Sliding and Gliding Windows
Sliders are the honest workhorse of the elevations nobody photographs. They are cheap, they are wide, they open without swing clearance, and there is almost nowhere in a Charleston historic district where one is going on a face the public can see.

Bay and Bow Windows
A bay or a bow is not a window in any meaningful sense. It is a miniature addition that happens to be glazed, and that governs how the job runs here, from the review path to the flashing detail to whether we build it at all.

Picture and Architectural Shapes
Fixed glass is the cheapest way to buy a view and the easiest thing to get wrong in a hurricane market. Nothing opens, so no hardware fails and no air leaks, but there is no operable sash to fall back on and the spans get large fast.

Egress Windows for Bedrooms
Egress is arithmetic, not opinion, and it is the one part of a window quote nobody gets to negotiate. Bedrooms have to carry an opening a firefighter can come through and an occupant can get out of, and those figures derail more replacement jobs here than anything else.

Impact Glazing and Opening Protection
This is the page where the two authorities in this city collide, and where our recommendation departs furthest from what you will be told elsewhere. The short version: the code requires the opening to be protected.

Patio and Sliding Glass Doors
A patio door is the heaviest moving object in a house and the one most people ignore until it stops moving. It also sits where Charleston's two hazards meet: a large glazed opening in a wind zone, and a threshold at the base of a wall in a flood-prone city.

French and Piazza Doors
French doors belong to Charleston in a way they do not to most American cities, because the building type demands them. The single house turns its narrow end to the street and runs a piazza down its long flank, and the rooms open onto it through glazed doors.

Entry Doors and Sidelights
Charleston has a front door problem that exists almost nowhere else, and it confuses every out-of-town supplier. On a single house the door facing the street does not open into the house.

Window Screens and Shutter Clearance
Screens are the cheapest thing we sell and the one people put off longest, which is odd in a city where the insect season runs most of the year and where the marsh produces something small enough to walk straight through a standard mesh without slowing down. Start with the mesh, because it decides everything else.

Glass Repair and Sealed Unit Replacement
Most calls that begin as a window replacement should end as a glass repair, and this page exists to make that easy to ask for. A failed seal, a cracked lite or a broken pane is a component fault, not grounds for replacing a working frame.

Commercial Storefront Glass
Commercial glazing is a different license, a different board and a different order of operations from residential work, and treating it as a bigger version of a house is how downtown storefront projects end up months late and thousands over. The license first.
What each of our services covers in Charleston
Open any service to see exactly what is included before you call.
Energy-Efficient Windows and Storm Panels
The Board of Architectural Review says the quiet part out loud in its own adopted policy: most energy loss in an old building goes through the walls, not the glass. That one line reorders the work on a peninsula house, and it saves people a great deal of money. So on a pre-1975 building the first thing we price is the cheap work.
- energy efficient windows Charleston SC
- low-E glass windows
- double pane window replacement
- interior storm window panels
- solar heat gain coefficient
- U-factor and SHGC ratings
- ENERGY STAR windows South Carolina
- argon filled insulated glass
- weatherstripping original sash
- air infiltration testing
- west facing window heat gain
- warm edge spacer
- single pane window upgrade
- attic and wall air sealing
- Lowcountry cooling season glazing
Vinyl Windows
This is the page where we talk you out of the product, across half of this city. The BAR's adopted window policy contains four words with no wriggle room: no vinyl or vinyl components. That applies in every district it governs, on every elevation visible from a public right-of-way.
- vinyl windows Charleston SC
- vinyl replacement windows
- welded vinyl frame
- vinyl double hung windows
- budget window replacement
- vinyl window cost
- composite window frames
- vinyl sliders
- rental property windows
- subdivision window replacement
- vinyl vs fiberglass windows
- reinforced vinyl meeting rail
- white and almond vinyl frames
- vinyl window warranty
- Berkeley County window replacement
Fiberglass and Fiberglass-Clad Windows
Fiberglass is the most misunderstood frame in this market, because where it is allowed is not where people assume. The BAR's district and age matrix does not treat it as a universal upgrade. It appears in some cells and absent from others, and knowing which is worth real money.
- fiberglass windows Charleston SC
- fiberglass clad wood windows
- pultruded fiberglass frames
- fiberglass vs vinyl windows
- narrow sightline windows
- fiberglass window expansion
- historic corridor district windows
- simulated divided lite fiberglass
- coastal fiberglass frames
- fiberglass patio door frames
- factory finished fiberglass
- fiberglass window cost
- dark color fiberglass frames
- fiberglass window durability salt air
- Dorchester County window replacement
Wood and Clad-Wood Windows
This is the frame the districts are written around, and the vocabulary matters more than the brand. The policy distinguishes three grid types and treats them as different products. Getting the wrong one specified is the single most common reason a window submission comes back.
- wood windows Charleston SC
- aluminum clad wood windows
- true divided lite windows
- simulated divided lite windows
- authentic divided lite
- muntin profile matching
- historic district window replacement
- putty glazed sash
- wood window restoration
- custom sash to match existing
- mahogany and cypress sash
- clad wood patio door
- BAR approved windows
- match existing grid pattern
- peninsula window replacement
Aluminum and Steel Windows
Aluminum and steel occupy an odd position here. Elsewhere in the fleet these are the frames people are talked out of. In Charleston's districts they are the two metals the policy actually names, and on the right building they are the correct answer rather than the compromise.
- aluminum windows Charleston SC
- thermally broken aluminum frames
- steel replacement windows
- steel casement restoration
- anodized aluminum finish
- AAMA 2605 fluoropolymer coating
- narrow sightline steel windows
- aluminum window condensation
- salt air corrosion windows
- commercial aluminum windows
- mid century aluminum windows
- aluminum window thermal break
- steel window glazing bead
- aluminum sliding window replacement
- harbor facing elevation windows
Double-Hung Sash Windows
The double-hung is the default window of this city and the one we are asked about most. It is also the one where the gap between a repair and a replacement is widest, which is exactly why the adopted policy requires evidence before it will accept the second. An original Charleston double-hung is a machine.
- double hung windows Charleston SC
- sash cord replacement
- counterweight sash box
- spiral balance replacement
- tilt in double hung windows
- single hung vs double hung
- sash repair historic windows
- meeting rail lock
- double hung window insert
- full frame window replacement
- wood sash restoration
- window sash weight pockets
- double hung screen replacement
- sash weatherstripping
- triple hung windows
Casement and Awning Windows
Casements seal better than anything else you can buy. The sash pulls into a compression gasket all the way round, so air infiltration numbers are the best in the catalog. That is the case for them, and outside the historic districts it is a strong one.
- casement windows Charleston SC
- awning windows
- crank operator replacement
- casement hinge replacement
- steel casement windows
- multipoint lock casement
- egress casement window
- awning window over kitchen sink
- casement window screens
- casement vs double hung
- hopper windows
- stainless casement hardware
- casement window air seal
- changing window operation type
- coastal casement hardware corrosion
Sliding and Gliding Windows
Sliders are the honest workhorse of the elevations nobody photographs. They are cheap, they are wide, they open without swing clearance, and there is almost nowhere in a Charleston historic district where one is going on a face the public can see. That is not a criticism of the product.
- sliding windows Charleston SC
- gliding window replacement
- horizontal slider windows
- sliding window rollers
- slider window track repair
- rear elevation windows
- aluminum slider replacement
- vinyl sliding windows
- wide opening slider
- slider window screens
- egress sliding window
- sliding window weep holes
- garage and workshop windows
- 1970s aluminum sliders
- low profile window sightlines
Bay and Bow Windows
A bay or a bow is not a window in any meaningful sense. It is a miniature addition that happens to be glazed, and that governs how the job runs here, from the review path to the flashing detail to whether we build it at all. On a reviewed elevation the answer is usually no.
- bay windows Charleston SC
- bow window installation
- bay window seat
- bay window roof and flashing
- cable support bay window
- garden window
- bay window headboard
- projecting window addition
- bow window five lite
- bay window insulation
- bay window replacement cost
- copper bay window roof
- bay window structural support
- rear elevation bay window
- bay window sagging repair
Picture and Architectural Shapes
Fixed glass is the cheapest way to buy a view and the easiest thing to get wrong in a hurricane market. Nothing opens, so no hardware fails and no air leaks, but there is no operable sash to fall back on and the spans get large fast. Charleston's architectural shapes are not decoration bolted on later.
- picture windows Charleston SC
- arched window replacement
- palladian window
- fanlight and transom
- round top window
- fixed lite window
- architectural shape windows
- custom radius window
- gable end triangle window
- large fixed glass span
- laminated glass picture window
- transom over entry door
- octagon and circle windows
- stair landing window
- tempered glass requirement
Egress Windows for Bedrooms
Egress is arithmetic, not opinion, and it is the one part of a window quote nobody gets to negotiate. Bedrooms have to carry an opening a firefighter can come through and an occupant can get out of, and those figures derail more replacement jobs here than anything else. What gets measured is net clear opening: the void left once the sash is thrown wide, not the frame dimension printed on the order.
- egress windows Charleston SC
- emergency escape opening
- net clear opening 5.7 square feet
- sill height 44 inches
- bedroom window code
- basement egress window
- raised foundation egress
- attic conversion egress
- egress window well
- casement for egress
- R310 requirements
- enlarging a window opening
- converted attic bedroom
- rental inspection window
- window opening control device
Impact Glazing and Opening Protection
This is the page where the two authorities in this city collide, and where our recommendation departs furthest from what you will be told elsewhere. The short version: the code requires the opening to be protected. It does not require you to buy an impact window.
- impact windows Charleston SC
- hurricane shutters Charleston
- opening protection wind code
- large missile test ASTM E1996
- 150 mph design wind speed
- laminated impact glass
- wood structural panel shutters
- Bahama shutters
- accordion and roll down shutters
- safety glazing film
- wind zone 3 South Carolina
- hurricane protection historic homes
- design pressure rating windows
- storm panel tracks
- impact rated entry doors
Patio and Sliding Glass Doors
A patio door is the heaviest moving object in a house and the one most people ignore until it stops moving. It also sits where Charleston's two hazards meet: a large glazed opening in a wind zone, and a threshold at the base of a wall in a flood-prone city. The threshold is where we start.
- patio doors Charleston SC
- sliding glass door replacement
- multi slide patio door
- patio door roller replacement
- patio door track repair
- impact rated patio door
- screened porch doors
- patio door threshold flashing
- tandem stainless rollers
- lift and slide door
- patio door lock replacement
- raised foundation door threshold
- salt air door hardware
- patio door weep holes
- wide opening glass doors
French and Piazza Doors
French doors belong to Charleston in a way they do not to most American cities, because the building type demands them. The single house turns its narrow end to the street and runs a piazza down its long flank, and the rooms open onto it through glazed doors. That piazza is not a porch bolted on for looks.
- french doors Charleston SC
- piazza doors
- in swing vs out swing french doors
- double french door replacement
- astragal and flush bolts
- multipoint lock french doors
- french door threshold
- true divided lite french doors
- interior french doors
- french door screens
- jib window doors
- single house piazza
- french door weatherstripping
- french door hinge sag
- wood french doors coastal
Entry Doors and Sidelights
Charleston has a front door problem that exists almost nowhere else, and it confuses every out-of-town supplier. On a single house the door facing the street does not open into the house. It opens onto the piazza, and the real entrance is a second door along that porch.
- entry doors Charleston SC
- front door replacement
- fanlight transom restoration
- sidelight glass replacement
- piazza screen door
- fiberglass entry door
- solid wood entry door
- door hardware coastal corrosion
- impact rated entry door
- historic door repair
- entry door sill pan
- storm door installation
- door casing and pilasters
- false front door single house
- leaded glass sidelights
Window Screens and Shutter Clearance
Screens are the cheapest thing we sell and the one people put off longest, which is odd in a city where the insect season runs most of the year and where the marsh produces something small enough to walk straight through a standard mesh without slowing down. Start with the mesh, because it decides everything else. Standard fiberglass at eighteen by sixteen is fine inland.
- window screens Charleston SC
- rescreening service
- custom window screen frames
- solar screen fabric
- pet resistant screen mesh
- stainless steel insect screen
- screen spline replacement
- half screens double hung
- porch and piazza screening
- no see um mesh
- shutter clearance windows
- screen door repair
- fiberglass vs aluminum screen
- screen frame corrosion
- retractable screens
Glass Repair and Sealed Unit Replacement
Most calls that begin as a window replacement should end as a glass repair, and this page exists to make that easy to ask for. A failed seal, a cracked lite or a broken pane is a component fault, not grounds for replacing a working frame. Haze between the panes means the perimeter seal has given up and the desiccant in the spacer is spent.
- glass repair Charleston SC
- foggy window repair
- insulated glass unit replacement
- failed seal double pane
- broken window glass replacement
- tempered glass cut to size
- laminated glass replacement
- spacer date code
- single pane glass reglazing
- putty glazing repair
- emergency board up
- restoration glass
- sash reglazing historic windows
- mirror and table top glass
- storefront lite replacement
Commercial Storefront Glass
Commercial glazing is a different license, a different board and a different order of operations from residential work, and treating it as a bigger version of a house is how downtown storefront projects end up months late and thousands over. The license first. In South Carolina, Glass and Glazing is a general contractor classification under Section 40-11-410, and it is the classification that names curtain wall systems, mall fronts and architectural window systems.
- commercial glass Charleston SC
- storefront glass replacement
- curtain wall glazing
- aluminum storefront framing
- all glass entrance doors
- tempered storefront lites
- commercial door closers and pivots
- structural silicone reglazing
- storefront King Street
- office building window replacement
- restaurant glass replacement
- board up service commercial
- thermally broken storefront
- BAR large commercial review
- glass and glazing contractor license
What Charleston property owners ask us
Which window services does Charleston Window Pros handle?
Everything listed on this page, residential and commercial, across Charleston and the South Carolina Lowcountry. Work is done by our own crews rather than handed to whoever is cheapest that week, which is the only way the workmanship warranty means anything.
Can I combine more than one service in a single job?
Yes, and it is usually cheaper. Bundling window work into one mobilization saves setup, disposal and travel, and it means one crew, one schedule and one written free estimate instead of three contractors blaming each other.
Do you give free estimates for every service?
Every one. We come out, measure, look at the real condition of the work area, and put an itemized free estimate in writing with materials and scope spelled out. No charge, no deposit, and no obligation to book.
What Charleston Customers Say
We had two quotes for the whole house at one number and no mention of review. These guys came out, walked the lane behind us, and showed us that four openings were visible from it and eleven were not. The eleven got a clad unit, the four got repaired sash and a storm panel. Total came in under both of the other quotes.
Straightforward job, no review, no drama. They measured every opening rather than assuming the builder used one size, which turned out to matter on the two upstairs bedrooms. Egress numbers were written on the quote. Installed in a day and a half and cleaned up the mulch bed afterwards.
Called about condensation between the panes on eight windows and expected to be sold a whole-house replacement. They swapped the sealed units in the existing frames and replaced two failed balances. About a quarter of what I had braced for. They also told me which two frames really are near the end and to budget for those.
Salt eats hardware out here and every previous installer ignored it. This crew specified the rollers and fasteners as a separate line item and explained why the ocean side and the marsh side of the house were getting different parts. Sliders still run with one finger after two seasons.
Service Areas
Charleston Window Pros serves Charleston, SC and surrounding communities including: