Knox Roofing crew member nailing architectural shingles on a steep roof in Dallas

Dallas-Fort Worth roofing contractor

Roof it right. Flash it in our own metal.

Shingle, standing seam, tile, slate and commercial low-slope roofs across Dallas-Fort Worth, with every flashing bent on our own brake on Wendell Road.

Priced per roofing square after a free measured inspection. The written estimate lists every line, down to the decking by the sheet.

  • 24-ga Galvalume
  • 16 oz copper
  • Full tear-off, no overlays

What we build

Five kinds of roof, one shop bending the metal for all of them.

  • 01 / Steep slope

    Architectural shingle

    Torn off to the deck every time. Synthetic underlayment, ice-and-water in valleys and at every pipe, new drip edge on every rake and eave.

    Shingle roofs
  • 02 / Steep slope

    Standing seam metal

    Panels run to length in the shop in 24-ga Galvalume or painted steel, locked with a 1.5 in mechanical seam. No end laps.

    Metal roofs
  • 03 / Heavy roofs

    Tile and slate

    Clay tile runs 900–1,100 lb a square, slate up to 1,500. Somebody checks the rafters before anybody writes a number.

    Tile and slate
  • 04 / Low slope

    Commercial TPO and mod-bit

    Core cuts before the quote. Tapered insulation to push water to the drains. Heat-welded seams probed at the end of every day.

    Commercial roofs
  • 05 / The shop

    Sheet metal fabrication

    Counter flashing, crickets, coping caps, gutters and panels in Galvalume, painted steel and 16 oz copper. Other trades order from us too.

    The brake
Shop-bent copper counter flashing being set into the mortar joint of a brick chimney
16 oz copper counter flashing, ground into the mortar joint

Where roofs actually leak

Most leaks are flashing. Not shingles.

Knox Roofing truck and trailer loaded with shingle bundles in a Dallas driveway as the crew carries material up the ladder
Load-in day. Shrubs tarped before the first bundle goes up.

Most leaks we chase are not the shingles. They are a chimney somebody sealed with a tube of caulk in 2009.

Walk a dozen leaking Dallas roofs and the pattern is boring. The field of the roof is fine. The water gets in where the roof meets something else: a brick chimney, a second-story wall, a skylight curb, a valley where two planes collide. Those joints are supposed to be handled by metal. Step flashing woven into each course, a counter flashing let into the mortar above it, a kick-out at the bottom of every wall so water lands in the gutter and not behind the siding.

What we find instead is stock L-flashing from a box store bent over by hand, face-nailed and smeared with sealant. Sealant lasts a couple of Texas summers. Then it shrinks off the brick, the joint opens, and the drywall in the upstairs bedroom starts to stain.

We bend the flashing in our own shop on Wendell Road. If the wall is out of plumb by half an inch, the metal is too.

What the shop bends for a typical re-roof

Drip edge
Every eave and rake, painted to match or bare Galvalume
Step flashing
One piece per shingle course at every wall
Counter
Ground into the mortar joint, never surface-caulked
Kick-out
At the base of every roof-to-wall joint
Cricket
Behind any chimney wider than 30 inches
Valley
W-valley metal where the plan calls for open valleys
See the brake and the gauges

What the price is built from

If it is not on the paper, it is not in the price.

A roof replacement in Dallas is priced per roofing square, which is 100 square feet of roof surface, after somebody has measured it on foot.

Pitch matters, because a 12/12 roof takes harnesses, toe boards and twice the hours of a 5/12. Layers matter, because tearing off two layers is a different day from tearing off one. Decking matters most and is the one thing nobody can see from the driveway, so we price it per 4x8 sheet as found and write the allowance on the estimate before we start.

Your estimate lists the underlayment by brand and the decking by the sheet. No price on this site is a binding quote. Nothing is binding until you sign a contract, and the contract says the same thing the estimate said.

Material weights and price basis per roof type
Lines on every written replacement estimate
LineHow it is countedWhy it is listed
Tear-offPer square, per layerTwo layers weigh twice as much to haul and take longer to strip.
DeckingPer 4x8 sheetRot is only visible once the shingles are off. You see the allowance before we start.
UnderlaymentBy brand, per squareSynthetic felt across the field, ice-and-water in valleys and at penetrations.
RoofingPer squareShingle line, metal profile and gauge, or tile and slate type, named.
MetalBy linear footDrip edge, step, counter, valley and kick-outs, bent in our shop.
VentilationBy the piece or footRidge vent, intake, and blocking off any vents that short-circuit it.
Haul-offPer loadDump trailer on site, magnet sweep of the yard at the end.
PermitAs charged by the cityPulled where the city requires one, at what the city charges.

The process

Six steps from inspection to final walk.

Drag, swipe or use the arrow keys. Each step says what happens and roughly when.

01 / 06

  1. 01

    Inspection on the roof

    Somebody climbs it. We measure every plane, check the attic for daylight and water stains, probe the decking at the eaves and photograph every flashing joint. Hail hits get circled in chalk and photographed with a scale. You get the photos whether you hire us or not.

    About an hour on site

  2. 02

    Written estimate, line by line

    Tear-off by layer, decking allowance per sheet, underlayment by brand, the shingle line or panel profile, every piece of metal by the foot, ventilation, haul-off and permit. If a repair will hold and a replacement is not needed yet, the estimate says that instead.

    Usually within a few working days

  3. 03

    Material order and lead time

    Shingles in common colors come off the supplier’s yard. Painted steel coil in a special color, reclaimed slate and some clay profiles take longer, and we tell you the lead time before you sign rather than after. Metal is cut and bent once the roof is measured again on the day before.

    Lead time named on the contract

  4. 04

    Tear-off and decking

    Shrubs tarped, dump trailer backed in, old roof stripped to the boards one section at a time. We walk the deck, mark soft sheets, and replace them at the per-sheet rate on your estimate. You get a photo of anything we pull. No section is left open overnight.

    Day one on a typical house

  5. 05

    Dry-in, metal and install

    Ice-and-water membrane in the valleys and around every penetration, synthetic underlayment across the field, drip edge at eaves and rakes. Step and counter flashing go in as the courses climb, not after. Shingles are hand-checked for nail line. Ridge vent last.

    Day one to day three, weather permitting

  6. 06

    Magnet sweep and final walk

    A rolling magnet goes over the yard, the driveway and the flower beds, twice. Gutters get cleared of granules and nails. Then we walk the roof and the yard with you, show you the metal at every wall, and hand over the photo set and the manufacturer warranty paperwork.

    Before the crew leaves the last day

The offer

A free measured roof inspection and a written estimate.

One visit, somebody on the roof with a tape and a camera, and a document that tells you what the roof needs and what each part of the work is priced on.

The estimate is not a binding quote. Price and scope are fixed only by a signed contract. Inspections cover homes and commercial buildings in the Dallas-Fort Worth area.

What the visit covers

  • Every roof plane measured on foot, not from a satellite photo
  • Attic check for stains, daylight and ventilation
  • Photos of every flashing joint, valley and penetration
  • Hail and wind damage documented with chalk and scale
  • Written estimate itemized by line, or a repair if that is all it needs

What it does not include

  • Negotiating your insurance claim for you
  • Core cuts on commercial roofs, which are scheduled separately
  • A structural engineer’s report, if heavy tile needs one
  • Pressure to sign anything on the day

Lines we hold

What we will not do.

Four things other roofers in this town will happily do. Each one costs the homeowner later. The long version of each is on the how we work page.

  1. Lay a new roof over the old one.

    No overlays. Two layers of shingle in a Texas August is a griddle, and it hides the decking we need to see. It also adds roughly double the dead load on the framing for a roof that will not last as long.

  2. Re-use old flashing on a replacement.

    Bending old step flashing back down saves an hour and a few dollars of metal. It also puts nail holes and fatigue cracks right where the water runs. Every wall gets new metal from our brake.

  3. Waive or hide your deductible.

    Offering to “cover” a deductible or bury it in the invoice is insurance fraud under Texas law. A contractor who offers it to you is padding the claim somewhere else.

  4. Sign you at the door after a storm.

    No contingency agreements on the porch the morning after hail. Get the inspection, read the estimate, talk to your adjuster, and then decide. If we are the right call, we will still be on Wendell Road next week.

Before you call

The questions everybody asks on the driveway.

Straight answers. If yours is not here, ask it on the phone at 214-646-6625.

Is the roof inspection really free?

Yes. We climb the roof, measure it, photograph what we find and send a written estimate. No charge and no obligation. The photos are yours to keep and to show another roofer if you want a second opinion. We would rather you compare line by line than compare a single number.

Why is there no price on the website?

Because any number printed here would be wrong for your roof. Two houses on the same street with the same square footage can differ by pitch, by layers, by how much rotten decking is under the shingles and by how many walls and chimneys need metal.

So the basis is printed instead: per roofing square for the roof itself, per 4x8 sheet for decking, per linear foot for metal. The estimate turns those into dollars for your house, and nothing is binding until a signed contract.

My roof leaks in one spot. Do I need a whole new roof?

Often not. A leak at a chimney, a skylight or a wall is usually a flashing repair: we cut back the shingles, pull the old metal and the caulk, and fit new step and counter flashing bent to that exact joint. A cracked neoprene pipe boot is a short job. If the shingles themselves are worn out, bald of granules or brittle, we will say so in writing and show you why.

Can you help with my hail insurance claim?

We document hail and wind damage honestly and can meet your adjuster on the roof to point at what we found. We do not negotiate your claim, which in Texas is the job of a licensed public adjuster, and we do not tell you a roof has hail damage when it has heat blistering or foot traffic. More on that on the residential roofing page.

Who should not call us?

If you want the cheapest roof that can be nailed over the old one by Friday, we are the wrong company. Same if the plan is to have the deductible absorbed somewhere in the paperwork. We are a good call when you want the leak to stop for good and you want to know what you paid for.

Do you only do houses?

No. We roof warehouses, retail and churches in TPO, modified bitumen and metal, and the shop takes fabrication orders from other contractors for coping, crickets and gutters. See commercial roofing and sheet metal.

Get the roof measured before anybody quotes it.

Book an inspection