Commercial Roof Repair in Leander, TX

What to Do When a Commercial Roof Starts Leaking

In an office, clinic or shop, a leak is more than a stained ceiling tile. It can close a suite, ruin stock and keep a tenant calling you every hour. Good commercial roof repair stops the water and keeps the building open while the work happens.

First steps for owners and managers

1. Clear the area. Move people, computers and inventory out from under the drip.
2. Catch and contain. Use buckets or bins, and lay plastic over shelving and equipment.
3. Check electrical. If water is near light fixtures or panels, have that circuit shut off.
4. Photograph everything. Take dated photos of the ceiling, the floor and any damaged goods, and note when the leak started.
5. Tell the tenants. Let them know who is coming and when.
6. Call us. Call (512) 254-8474 and we’ll set a time to get on the roof. If water is pouring in, see emergency roof repair.

Where Commercial Roof Repair Problems Start

Whether the building is a strip center on US-183, an office near Leander Station or a new building in the Northline district, the leak sources are the same.

Most leaks on a flat or low-slope roof start at a joint, an edge or a penetration. They rarely start in the open field of the membrane. Water sits longer on a low-slope roof than on a pitched one, so small openings matter more.

Where the problem is	What usually fails	The usual fix
Membrane seams	Seams never fully welded, or pulled apart by heat movement	Clean, re-weld or patch the seam with matching membrane
Parapet walls	Flashing pulled away, cracked coping cap	Re-flash the wall and reseal or replace the coping
HVAC and equipment curbs	Curb flashing split or never properly terminated	Re-flash the curb with matching membrane and metal
Drains and scuppers	Clogged strainers, loose clamping rings, failed drain seals	Clear, reset and reseal the drain or scupper
Ponding areas	Low spots that hold water and wear the membrane faster	Repair the membrane, then improve drainage
Service paths	Punctures from dropped screws, tools and boots	Patch punctures and add walk pads
Pipe and conduit penetrations	Dried pitch pockets, cracked pipe boots	Replace boots and rebuild pitch pockets

Seams

On single-ply roofs, seams are one of the first places we look. A TPO seam that was never fully welded can look fine for years, then open after enough hot days.

Leander averages about 93 days a year above 90°F, and that heat works seams loose. During commercial roof repair we probe every seam we can reach, not just the one over the stain.

Parapets and coping

Parapet walls take water from both sides. When the flashing pulls away at the top, or a coping joint cracks, water gets behind the membrane and runs down inside the wall. The stain often shows up far from the parapet itself.

HVAC curbs and rooftop units

Rooftop units sit on curbs that need their own flashing. Service techs walk around them, kneel on the flashing and drop screws. Condensate lines that drain onto the roof add standing water right where the membrane is already stressed.

Drains and ponding

The Asphalt Roofing Manufacturers Association defines ponding water as water that stays on a roof 48 hours or longer, and warns it can speed up membrane deterioration and add load to the deck (ARMA on ponding water). A clogged drain or scupper is often the cause. We check every drain on every visit.

Commercial Roof Leak Repair: How We Find the Source

Water on a flat roof can travel along the deck and insulation before it drips through. The leak inside is a starting point, not the answer.

1. We start inside and note where water shows up, how much and when.
2. We go to the roof above and check seams, curbs, drains and penetrations within a wide circle.
3. We check for wet insulation by feel underfoot and, when needed, by cutting a small test opening that we seal the same day.
4. We photograph and mark each problem on a roof plan with the date.
5. On hard cases, we test one area at a time with water until the leak shows.

A commercial roof leak repair that only patches the spot over the stain usually fails. Finding the real path saves a second trip and a second ceiling.

Commercial Roof Repair Leander Tenants Barely Notice

Most commercial roof repair happens on the roof, so the building can stay open. We plan around the people inside.

• Access: roof hatch, ladder or lift, and who holds the keys.
• Timing: early starts, weekend work or quiet hours for medical and office tenants.
• Interior checks: when we need to look above a ceiling, we schedule it with the tenant first.
• Staging: materials and debris stay away from entrances and parking along busy corridors like US-183 and Hero Way.
• Odor: some adhesives have strong odors, so we plan around air intakes.
• Cleanup: a magnet sweep for screws and nails in lots and walkways.

Storm Damage and Commercial Roof Repair Leander Owners Can Document

Texas has led the US in major hail events for 11 straight years, according to the NICB. On May 16, 2025, hail up to 3 inches fell in north and central Leander, and golf-ball-size hail was reported near Leander and Cedar Park on May 28, 2025.

Hail on a membrane is harder to read than on shingles. We look for cracked or bruised membrane, crushed insulation, dented coping, vents and flashing, and damaged rooftop units. Each finding gets a dated photo and a spot on the roof plan.

The claim belongs to the owner. Texas law bars a contractor from adjusting or negotiating a claim (Insurance Code 4102.163) and from waiving or paying a deductible (Business and Commerce Code 27.02). We provide the photos and a written estimate, and we can meet your adjuster on site if you ask.

For what to look for after a storm, see signs of hail damage and storm damage roof repair.

Commercial Roof Repair Reports for Property Managers

If you manage a building on Ronald Reagan Boulevard or Crystal Falls Parkway for an owner outside Williamson County, you need something they can forward to an owner, an asset manager or a board. After every inspection and repair, we send a written report.

What the report includes

• A roof plan or aerial view with problem areas marked.
• Dated photos of each issue with a short note on what it is.
• What we fixed, what still needs work and what can wait.
• A plain priority list: urgent, this year, watch.
• Before-and-after photos of completed repairs.

A report like this makes budget planning easier. It also gives you a history when the next storm hits or the building changes hands.

Matching Commercial Roof Repair to Your Roof System

Every system needs matching materials. A commercial roof repair on TPO is different from one on EPDM, and a patch that doesn’t bond to the existing membrane will fail.

Roof system	Typical repair method
TPO	Clean, prep and heat-weld new TPO over the damaged area
EPDM	Clean and prime, then apply EPDM patch with seam tape or adhesive
Modified bitumen	Cut out damage and torch or adhere a new cap sheet patch
Built-up with gravel	Clear gravel, rebuild plies and reset the surfacing
Metal	Tighten or replace fasteners, reseal laps, replace rusted panels

Wherever a roof meets a wall or a curb, every commercial roof repair we do uses metal flashing and proper terminations, not a bead of caulk. For flashing on the sloped parts of a building, see roof flashing repair.

Roof Access and Safety

Commercial roof repair Leander crews do happens at height. Commercial roofs bring safety issues that most homes don’t. OSHA says falls are among the most common causes of serious work-related injuries and deaths, and it requires fall protection at six feet in construction (OSHA fall protection).

We put protection in place near edges, skylights and hatches on every commercial roof repair. Tell us about any roof-access rules your building has and any tenant equipment on the roof before we arrive.

When Commercial Roof Repair Stops Making Sense

Repair is the right call when problems are limited to seams, flashing and a few spots, and the insulation is dry. When wet insulation spreads across large areas, leaks keep showing up in new places, or the membrane is brittle everywhere, patching just buys time.

We put that call in writing with photos so you can plan and budget. Our main commercial roofing page covers coatings and replacement options.

Commercial Roof Repair FAQs

How do you find a leak on a flat commercial roof?

We start inside, where the water shows up, then check the roof above it. Water can travel along the deck and insulation before it drips. We check seams, curbs, drains and penetrations first and may water-test one area at a time on hard cases.

Can you repair a commercial roof while the business is open?

Usually, yes. Most commercial roof repair work happens on the roof, not inside. We plan noisy work and deliveries around your hours and schedule any interior checks with the tenant first.

What causes most commercial roof leaks?

Seams, flashing at parapets and HVAC curbs, and clogged drains cause most of them. Punctures along service paths are close behind. The open field of the membrane is rarely the problem.

Do you work with property managers and out-of-town owners?

Yes. We send dated photos and written reports that a manager can forward to an owner or board. That way decisions don’t require anyone to climb the roof.

Will you meet our insurance adjuster?

If you ask, we can meet your adjuster on site and show the damage we photographed. We don’t negotiate or adjust the claim, and we never waive or pay a deductible. Texas law bars both.