Roof Replacement and Repair in Harford County and Baltimore County

We replace and repair asphalt shingle, metal and cedar roofs for homeowners from Bel Air to Towson. Every roof starts with a free assessment and photos of what we find, so you see the problem for yourself.

If a repair will do, we'll quote the repair.

Licensed in MD, PA and DE

Maryland MHIC 05-146782, Pennsylvania PA159947 and Delaware 2022705397.

10-year workmanship warranty

Every roof we install is covered by our 10-year workmanship warranty.

Photos before any quote

You'll see what we saw on your roof before we recommend anything.

Free assessments

No cost and no obligation, whether you need a repair, a replacement or neither.

Repair or replace? We'll tell you straight.

Plenty of roofs that look tired still have years left. Plenty that look fine from the driveway are failing underneath. Here's how we decide, and we'll walk you through it on your own roof.

A repair usually makes sense when

  • Damage is limited to one area, like a few missing shingles after a windstorm
  • A leak traces back to flashing around a chimney, vent or skylight
  • The roof is under 15 years old and the shingles are still flexible
  • The decking underneath is solid

It's usually time to replace when

  • Shingles are curling, cracking or losing granules across the roof
  • You're finding granules in the gutters or shingles in the yard after every storm
  • There are stains on ceilings or daylight showing in the attic
  • The roof is 20 to 25 years old or more, which describes a lot of homes in Bel Air and Jarrettsville
  • There are already two layers of shingles

From a recent assessment

[Add a real story: a homeowner who expected to need a new roof, and what we told them instead. Town, roof age, what we found and what it cost them. This is the proof behind the promise above.]

Roofing services

From a single missing shingle to a full tear-off, one crew handles the whole job.

Roof replacement

Full tear-off down to the decking, replacement of any soft or rotted boards, new underlayment, flashing and ventilation, then your new roof.

Roof repair and leaks

We trace leaks to their source, whether that's a cracked boot, failed flashing or wind-lifted shingles, and fix it properly.

Storm and wind damage

After a storm we document the damage with photos you can use, make the roof safe and repair or replace what's needed.

Roof inspections

A detailed look at the roof's condition and remaining life, with photos. Useful before buying or selling a home.

Gutters and roof edges

New gutters and downspouts installed with your roof, so water moves off the roof and away from the house.

Siding and trim

Pairing a new roof with siding or trim work? We handle both, on one schedule.

Roofing materials we install

We'll recommend a material based on your home, your budget and how long you plan to stay. Here's how the four compare.

asphalt roof closeup

Asphalt shingles

The most common roof in Maryland and Pennsylvania. Today's architectural shingles are thicker, handle wind better and look sharper than the flat three-tab shingles on many older homes.

A good fit for: most homes, and the best value per year of roof life.

metal roof

Metal roofing

Standing seam and metal shingle roofs shed snow and rain fast, resist wind and typically last decades longer than asphalt.

A good fit for: homeowners staying long term, low-slope sections, porches and outbuildings.

cedar shake closeup

Cedar shake

Natural wood with a look nothing else matches. Cedar needs the right ventilation and a crew that knows how to install it.

A good fit for: historic and higher-end homes, including farmhouses around Sparks, Glencoe and the Main Line.

slate roof up close

Natural & Synthetic Slate

A classic roof with distinctive texture and character. Natural slate offers the beauty of real stone, while synthetic options recreate the look with less weight. Both need a crew that understands the material and its installation.

A good fit for: historic homes, higher-end properties and homeowners who want a timeless look with lasting curb appeal.

Flat roofing for homes and businesses

We repair and replace flat and low-slope roofs on homes, row houses and commercial buildings, working with EPDM rubber, TPO and modified bitumen. Whether it’s a leak at a seam, water that won’t drain or a roof that’s past patching, you get the same free assessment, photos of what we find and a written proposal.

What a roof replacement looks like

Most replacements take one to two days. Here's the whole job, start to finish.

1

Free assessment

We get on the roof and in the attic, take photos and show you what we found.

2

Written proposal

You get a written scope with materials, colors and price. No pressure and no expiring same-day discounts.

3

Tear-off and prep

We protect your landscaping, strip the old roof and replace any damaged decking.

4

Install

New underlayment, flashing, ventilation and roofing, installed to the manufacturer's specifications.

5

Cleanup and final walk

We clean up debris and nails, then walk the finished roof with you. Your 10-year workmanship warranty starts here.

6

Warranty Inspection

One year after installation is finished, we return to check on the project. 

Selling your home?

An old roof can stall a sale or turn into a last-minute concession. A pre-listing inspection tells you where you stand before buyers do, with photos and a written condition report you can share.

Real estate agents: we're glad to inspect roofs for your listings.

Recent roofing projects

Leaking roof replaced, plus gutters and skylights

Monkton, MD

With leaks showing up in several spots, this 1997 roof was past saving, so we took it all off and installed CertainTeed Landmark Pro shingles in Charcoal Black, along with new Velux skylights, AZEK PVC fascia, and a full set of gutters and downspouts.

Bel Air Roof Replacement.JPG

Aging roof replaced, plus new gutters and guards

Bel Air, MD

A home inspection flagged this early-2000s roof for replacement, so we tore it off down to the deck and installed CertainTeed Landmark Pro shingles in Coastal Blue, then finished the job with new gutters, downspouts, and gutter guards.

Towson Roof Replacement.JPG

Roof replaced early, plus new fascia and windows

Towson, MD

After seeing a roof we'd replaced on their street, these homeowners chose to get ahead of their 2002 roof, so we did a full tear-off with CertainTeed Landmark Pro shingles in Georgetown Gray, new fascia, and 12 ProVia Aspect Series windows.

Hear from our customers

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Ralph Borgess profile picture
Ralph Borgess
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They did an absolutely amazing job replacing our siding, gutters and adding an awning on our back porch. As a Home Inspector I am in houses every day and often see things that are missed or poor craftsmanship, but Jenack's work is absolutely amazing and their attention to detail is second to none. The owner Jack and his crew were a pleasure to work with and really gave us personalized attention and made recommendations to help us along the way. I highly recommend this company and will recommend them to all my clients in the future.
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Will Er profile picture
Will Er
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Jack's company replaced our gutters and they turned out great! They were very communicative throughout the process and even came out early on day it was going to rain to get the install done before it started raining!
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Tami Williams profile picture
Tami Williams
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Jack did an excellent job on my home. He walked me through the entire process, explained everything clearly, and made sure I understood what was being done. He followed up afterward to check if I had any concerns, which really showed how much he cares about his customers. His professionalism and communication made the whole experience smooth and stress‑free. Highly recommend his services.
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Mick Navin profile picture
Mick Navin
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Jenack was great. Did not jump through hoops like others in providing a quote. One visit, one quote. The best quote I received! One call to schedule the work. Delivery of project materials on a Friday. Completed work Monday and Tuesday with full clean up. I called about a very minor gap in caulking and the owner came out the next day and fixed it. A great company to work with.
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sarah mckenzie
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Jenack did an awesome job replacing siding and building steps on the side of my house. Professional and easy to work with
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Larry Oleniak profile picture
Larry Oleniak
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One of the best contractor/client experiences I’ve had. Work was performed on time according to agreed upon start and finish. All damage items brought to site replaced that same day and installed per contract. Highly recommended contractor from an architect with 30 years in the business.
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David Alexander profile picture
David Alexander
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Jack is a really great guy! Very personable, considerate, honest. Seems to know what he's doing, too. He's been very good in inspecting, evaluating, and repairing the flat roof of a Baltimore row house we bought last year. When it comes time to replace it, I think we know who we'll call.
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Sharon Greenya
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Very professional every step of the way. We were very pleased with the work that was completed and how quickly it was completed. I would recommend Jenack to my friends and family for repairs and roofing.
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Renee Richardson profile picture
Renee Richardson
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I can’t say enough about how Jack and his crew hung in there with me to make sure everything right. With years of architecture behind me sometimes you know too much and Jack was there with open arms to make sure I had things done to my liking. In the end, our home looks so much better. I can’t thank him enough for being so great even through the little things… like the dumpster truck leaving a rut… Jack just showed up with topsoil and seed and took care of it all right away!
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Susan Huff
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I contracted with Jack Scrof/Jenack Construction this spring to replace my back door and storm door. Communication was excellent, unlike some experiences I've had with other contractors. He and his crew were professional, friendly, worked hard and smart, and did a super job replacing the door. I appreciate the outstanding customer service Jenack provided and would 100% recommend them for your work.

Brands We Use & Why

Hand-picked systems tested and proven on every job we install.

Most of our roofs are CertainTeed because their shingle weight, sealing power, and wind resistance simply don't quit. We also install a high volume of GAF Timberline and Tamko shingles for homeowners seeking dependable strength and classic styles. For flat roofs, Mule-Hide and Firestone give us bulletproof seams, while ABseam and Everlast provide zero-maintenance standing-seam metal. At Jenack Construction, we only install materials we’d trust on our own homes. — Jack, Jenack Construct

Asphalt Shingles

CertainTeed Logo
Gaf Logo
Tamko logo

Windows: 

Doors:

Flat roofing/Commercial Roofing

CertainTeed Logo

Roofing questions

Have a question that isn't here? Call us or send it with the form below.

How much does a new roof cost?

It depends on the size and pitch of your roof, the material, and what we find under the old shingles. After a free assessment you'll get a written price, not a range. 

How long does a roof replacement take?

Most asphalt replacements take one to two days. Metal and cedar roofs take longer. We'll give you a schedule in your proposal.

Do you work with insurance after storm damage?

[Confirm with Jen and Jack: whether they meet adjusters, help with claim documentation, and do emergency tarping.]

Can you put new shingles over my old roof?

Building codes allow up to two layers, but we generally recommend a full tear-off. It's the only way to check and repair the decking, and a second layer adds weight and shortens the life of the new roof. 

What warranty comes with a new roof?

Our workmanship is covered for 10 years. Your shingles or metal also carry a manufacturer's warranty, which varies by product. We'll explain both in your proposal.

How do I know if my roof needs to be replaced?

Curling or cracked shingles, granules in the gutters, leaks and roof age of 20 years or more are the usual signs. The surest way to know is a free assessment, and if you don't need a new roof, we'll tell you.

Get a free roof assessment

Tell us what's going on with your roof and we'll call you back to set up a time.

Prefer to talk now? (410) 638-8605

Request your free assessment

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