Roof Replacement in West Columbia, Lexington & the SC Midlands

How much does a roof replacement cost in the Columbia SC area?

Nobody in this industry likes publishing prices. We do it because you deserve to know whether you are looking at a $10,000 project or a $30,000 project before you invite three companies into your living room. Roofing is priced by the square — one square equals 100 square feet of roof surface, not floor space. A 2,000 square foot ranch with a 6/12 pitch typically has 24–28 squares once you account for overhangs and waste.

What moves your number inside those ranges: pitch (anything over 7/12 needs additional safety staging and slows production), number of stories, penetrations (a 1970s ranch with two plumbing stacks is cheap; a custom home with three chimneys, six skylights and four dormers is not), decking condition, layers of old roofing to remove, and access for a dump trailer. See the full 2026 Midlands roofing cost guide for line-item detail, including what we charge for decking replacement and steep charges.

How do I know if my roof needs replacing instead of repairing?

Here is what we actually look for on a Midlands roof, in the order it matters:

• Age against local reality. A 3-tab shingle roof in Lexington or Richland County realistically gives 15–20 years, not the 25 on the wrapper. Architectural shingles run 22–28 years here. Our humidity, 95°F+ summer deck temperatures and afternoon thunderstorm cycling age asphalt faster than the same shingle in Ohio.
• Granule loss. Granules are the shingle's sunscreen. When you see them piling in gutter troughs and at downspout splash blocks, and you can see darker asphalt showing through on the south and west slopes, the mat is now cooking directly in UV.
• Cracking, curling, and "fishmouthing." Shingle edges lifting off the course below mean the asphalt has lost its plasticizers. Those edges are where wind gets underneath.
• Nail pops and exposed fasteners. Common on 1980s–90s installs where nails were driven high or the deck has cycled with humidity.
• Soft or spongy decking. If we can feel deflection between rafters while walking a slope, water has been in the sheathing for a while. That is not a shingle problem anymore.
• Interior evidence. Coffee-colored ceiling rings, nail-line rust in the attic, daylight at valley boards, and dark staining on the underside of the deck.

If two or three of those are true across multiple slopes, replacement is almost always cheaper per year of service life than chasing leaks. If only one slope is involved, read our repair vs. replace decision table or get a roof repair quote instead. We are happy to sell you a $400 pipe boot repair and come back in eight years.

Before

After

What happens during a Beaver Roofing replacement, step by step?

1. Free 19-point inspection and photo report

An estimator — not a commissioned door-knocker — gets on your roof. We check field shingles, ridge, hips, valleys, all penetrations, pipe boots, step and counter flashing, chimney crickets, skylight curbs, drip edge, gutter attachment, decking feel, attic ventilation intake and exhaust, insulation contact, sheathing staining, fastener condition, and interior stains. You get photos of everything, including what is fine.

2. Written scope and material selection

You get an itemized estimate: squares, waste factor, underlayment type, ice-and-water placement, ridge vent linear footage, flashing, and disposal. Colors are picked with real sample boards on your driveway in daylight — or with the Owens Corning DESIGNEyeQ visualizer on a photo of your actual house.

3. Permit and scheduling

We pull the roofing permit where the jurisdiction requires it — Lexington County, Richland County, and the cities of Columbia, West Columbia, Cayce, Lexington, Irmo, Chapin and Camden all handle this differently, and we deal with it so you do not have to. We schedule around the forecast; nobody tears off a roof with a 70% afternoon pop-up chance and no dry-in plan.

4. Protection and tear-off

Tarps over landscaping and HVAC units, plywood against siding at the trailer, and a full tear-off down to the deck. We do not roof over. Roof-overs hide rot, void warranties, and double the weight your rafters carry. Decking is inspected sheet by sheet and re-nailed to current fastening schedule; soft sheets are replaced and itemized at cost.

5. System installation

Synthetic underlayment across the field, self-adhered ice-and-water membrane in valleys and around penetrations, new galvanized or painted drip edge, starter course at eaves and rakes, then architectural shingles nailed to manufacturer spec — six nails per shingle on high-wind exposures. New pipe boots (never re-used), new step flashing at walls, new counter flashing at chimneys, and a continuous ridge vent balanced against soffit intake.

6. Walkthrough, cleanup and warranty registration

Magnet sweep of the driveway, walkways and beds — twice — plus hand-picking pine straw beds. Then a walkthrough with photos of the finished system, your manufacturer warranty registered in your name, and the Beaver workmanship warranty in writing. See exactly what is covered.

Which shingles hold up best in South Carolina heat?

Two details specific to our climate. First, algae resistance: those black streaks you see on half the roofs in Irmo and Cayce are Gloeocapsa magma, a cyanobacteria that thrives in humidity and feeds on limestone filler. AR shingles with copper-infused granules resist it. Second, ventilation: attic temperatures over 150°F cook shingles from below and void the temperature assumptions in the warranty. We balance ridge exhaust against soffit intake on every replacement — it is the single cheapest thing you can do to add years to a roof in South Carolina. Compare systems on our metal vs. asphalt shingle page.

Will insurance pay for my roof replacement?

This is where we are genuinely different from other roofing companies in the Midlands. our estimators are professional insurance claims estimator: he writes scopes in Xactimate, the same software your carrier's adjuster uses, and works within USAA, State Farm, Allstate, Liberty Mutual, Farmers, Nationwide and every major carrier writing in South Carolina routinely. When we say "we speak insurance," we mean we produce the document the adjuster is required to respond to — not a one-page proposal.

On a storm claim we chalk and photograph 10' x 10' test squares per slope, count hits, document collateral damage on soft metals (gutters, downspouts, HVAC fins, mailboxes, window wraps), photograph creased shingles and lifted tabs, then write the scope with the code and access items carriers frequently omit: drip edge, valley membrane, starter course, ridge vent, steep and high charges, and detach-and-reset of gutters or satellite dishes. If the first estimate misses items, we file a supplement. Full detail on our storm damage & insurance claims page.

Paying out of pocket instead? We offer financing with fast approvals and monthly payments, and we will phase work if that is what makes the project possible this year.

Do I need new gutters when I replace my roof?

The Midlands gets roughly 45 inches of rain a year, much of it in short, violent summer downpours. Five-inch gutters with two downspouts do not move that water off a large roof. We form 6-inch seamless aluminum and copper gutters on site to the exact length of your fascia — no seams to fail — and we size downspouts to the drainage area rather than to what was there before. If your home is under pines, ask about micro-mesh gutter guards; pine needles are the number-one gutter failure cause in Lexington County.