★ 4.9 from 89 reviews · Stratford, CT
Roofing Contractor in Southwestern Connecticut
Protecting Connecticut homes since 1988 — roofing, re-roofing, siding, gutters, skylights and waterproofing for Stratford and Southwestern Connecticut, across Fairfield and New Haven counties.
- Free, no-pressure written estimate
- A price that holds — no surprise add-ons
- Tidy site and a magnet sweep every evening
4.9★Rated by 89 customers on Google
Get Your Free Estimate
Tell us what is going on and we will come and look — usually within a few days.
- Licensed & insured
- CT HIC registered
- Family owned since 1988
- Free written estimates
- Workmanship guarantee
Why Kellner
Thirty-Seven Years in One Town Is Its Own Reference.
As a roofing contractor in Southwestern Connecticut, most of our work comes from neighbors of people we have already looked after. That only happens if the job is right the first time.
1
You Deal with the Owner
The owner is on the jobs. Reviews mention him by name because he is actually there.
2
A Price That Holds
The estimate is the number. Anything unexpected is shown to you before it is done.
3
We Clean Up Properly
Magnet sweep and a tidy site every evening, not just on the last day.
Our services
Everything on the Outside of the House.
One local crew, one point of contact, one number that holds.
Roof Replacement
Full tear-off and replacement, clean site at the end of every day.
Roof Repair
Leaks traced to the actual cause, not patched over.
Siding
Sealed properly, and still looking right in ten years.
Gutters
Sized and pitched for real Connecticut rainfall.
Skylights
Supply, install and flash — sealed into the roof so the light comes in and the water stays out.
Waterproofing
Basements, foundations and flat sections kept dry — the water stopped at the source.
Commercial Roofing
Flat and low-slope systems for local businesses.
Roof Inspection
An honest assessment before you buy, sell or claim.
Gutter service
Gutters Sized for Connecticut Rain.
Undersized or badly pitched gutters put water exactly where it does the most damage — fascia, foundations and basements. We install seamless aluminum gutters sized and pitched for real Connecticut rainfall, from the older homes around Stratford and Fairfield to newer builds in Shelton and Trumbull.
- Seamless aluminum, formed to length on site
- Correct pitch and downspout placement
- Guards to keep leaves and pine needles out
- Cleaned, repaired or fully replaced
Siding contractor
Siding That Still Looks Right in Ten Years.
Siding is the first thing people see and the last line against the weather. We install and replace vinyl, fiber-cement and composite siding — sealed and flashed properly so it stands up to coastal wind and Connecticut winters, from Milford and West Haven across to Westport and Darien.
- Vinyl, fiber-cement and composite
- Proper flashing at windows, doors and rooflines
- Trim, soffit and fascia repair
- Colour-matched to the rest of the house
Skylight contractor
Skylights, Set In and Sealed Right.
A skylight is only as good as its flashing. We supply and install fixed and vented skylights — and replace the older ones that have started to leak — flashed into the roof so the light comes in and the water stays out. A common job on the Cape and Colonial homes around Fairfield, Easton and Newtown.
- New installs and leak-prone replacements
- Fixed, vented and electric units
- Curb- and deck-mounted flashing done properly
- Done on its own or with a roof replacement
Waterproofing service
Stopping Water at the Source.
Wet basements and failing flat sections are almost always a water-management problem, not a mystery. We waterproof foundations, basements and low-slope roof sections — tracing where the water actually gets in and stopping it there — for homes and businesses across Southwestern Connecticut, from Norwalk and Ridgefield to Monroe and Weston.
- Foundation and basement waterproofing
- Flat and low-slope roof membranes
- Drainage and grading corrections
- A free assessment before any work
Storm Damage? We Answer the Phone.
Wind, hail or a tree down on the roof — call and we will get someone out, tarp it if it needs tarping, and document the damage properly for your insurer.
How it works
Four Steps, No Surprises.
1
You Get in Touch
Tell us what you are seeing. We will say if it sounds urgent.
2
We Look Properly
On the roof, not from the driveway — with photos of what we find.
3
A Written Number
A fixed estimate that holds. Anything unexpected is shown to you first.
4
We Do the Work
Tidy site every evening, magnet sweep at the end.
Before & after
See the Difference.
Real Kellner jobs, photographed on site by our crews.
Roof Replacement
Tear-off
Finished
Commercial Roof Coating
Before
After coating
Siding
During
Finished
What we install
Six Roof Systems, Not One.
The right system depends on the pitch, the building and what is underneath. We will tell you which one you actually need.
Asphalt Shingle
The standard for most Connecticut homes. Architectural shingles over a full underlayment.
Cedar
Shake and shingle, for the homes on the shoreline where it belongs. Repaired as well as replaced.
EPDM Rubber
Single-ply membrane for flat and low-slope sections — porches, dormers, extensions.
Flat Roofing
Built up properly with the drainage worked out first, so it is not ponding by next spring.
Commercial Systems
Low-slope work for local businesses and property managers, scheduled around your opening hours.
Roof Coatings
Where a sound roof needs its life extended rather than a full tear-off.
Reviews
4.9 Stars from 89 Neighbors.
★★★★★
“Saul and team did an excellent job on our covered patio ceiling! Professional, clean, fast and the end result was exactly what we wanted.”
Grace Basilio RomeroGoogle review
★★★★★
“Great experience!! Have been looking around to get my windows repaired for a while and so glad I contacted them! Phenomenal work!”
Samantha MoralesGoogle review
★★★★★
“Had a leak in my roof. Saul and his crew came out, assessed the problem, explained the issue and did not leave until it was solved.”
Herb Billups SrGoogle review
Service area
Stratford and Southwestern Connecticut.
We are a roofing contractor in Southwestern Connecticut, covering fifteen towns across Fairfield County (Stratford, Trumbull, Fairfield, Easton, Weston, Westport, Monroe, Darien, Newtown, Shelton, Norwalk and Ridgefield) and New Haven County (Milford, West Haven and New Haven). If yours is on this list, we are there most weeks.
Questions
The Things People Ask Before They Call.
How Much Does a New Roof Cost?
Honestly, nobody can tell you over the phone. It depends on the size, the pitch, how many layers are coming off and what the deck underneath looks like. We come out, get on the roof, and give you a written number that holds. The visit is free and there is no pressure at the end of it.
Do I Actually Need a Full Replacement, or Will a Repair Do?
Often a repair will do, and we will say so. A roof with ten good years left does not need tearing off because one valley is leaking. You will get photos of what we found and a straight answer either way.
How Long Does a Roof Replacement Take?
Most houses around here are one to two days. We tarp and protect the landscaping first, and the site gets tidied and magnet-swept every evening — not just on the last day.
Do You Help with Insurance Claims?
Yes. After storm damage we document what we find properly, with dated photos, so your adjuster has something real to work from. We will meet the adjuster at the house if that helps.
Are You Licensed and Insured?
Licensed, insured and registered as a Connecticut Home Improvement Contractor. Ask to see any of it at the estimate and we will show you.
What Areas Do You Cover?
Stratford and Southwestern Connecticut — fifteen towns across Fairfield and New Haven counties, from Milford and West Haven across to Norwalk, Darien and Ridgefield.
Do You Do Commercial Work?
Yes. Flat and low-slope systems for local businesses and property managers, scheduled around your opening hours rather than ours.
Let’s Take a Look at Your Roof.
Free estimate, no pressure, and a straight answer on whether you need the work at all.