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#1 Roofing Contractor in the Boston area

Your Trusted Roofing Company

At D&G Exteriors, we are committed to providing top-notch roofing services. As experienced roofers, we understand the critical role your roof plays in protecting your home and enhancing its aesthetic appeal. As a leading roofing contractor, we pride ourselves on our commitment to quality and customer satisfaction. From roof repair to new roof installation, we use only the best materials and techniques. Whether you need an asphalt shingle roof, a durable metal roof, or a modern rubber roof, we're here to help you every step of the way.

Expert Roofing Services

D&G Exteriors is a full service roofing company, with expertise in all types of roofing systems including:

  • Aspahlt shingle roofs

  • Flat rubber roofs

  • Metal roofing

In addition to roof replacements, we also offer fast and affordable roof repair services.  Common repair issues we see are:

  • Chimney re-flashing

  • Replacing shingles

  • Resolving ventilation issues

  • Flashing around cheek walls and wall-to-roof areas

Is it time for a roof inspection?

Here are some things to think about when deciding if you need a roof inspection. 

  • Leaks: A leak could mean a new roof is in order, or just a repair. If the leak has been addressed multiple times but still persists, a new roof might be the best solution.

  • Granule loss: Asphalt shingle roofs have small granules on the shingles. Over time, or in extreme weather, the granules start to come off. When the shingle is no longer covered by these granules, they will start to age much faster and lose their integrity.

  • Missing shingles: Again, missing shingles could mean you need a new roof, or just a repair.

  • Age: A typical roof system can last anywhere from 15-30 years (depending on a lot of factors). If your roof is that old, it might be time to think about replacing it to prevent more costly issues down the road.

Schedule an Assessment

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Roof Buying Guide

Types of Roofs

  • Pitched roof (or high slope roof): Most homes you see in the Boston area have pitched roofs, which simply means they have a detectable slope to them.

  • Flat roof (or low slope roof): Exactly what it sound like, these roofs are flat or nearly flat. These are more common in Boston proper, Cambridge, and sometimes other areas.

  • Pitched and flat roof: Some homes have mostly pitched roofs, with some sections of the home that are flat. For example, a home might have a pitched roof over the main structure of the home, and a flat roof over a porch or extension that was added later.

Roofing Materials

  • Asphalt shingle roof: These are the most common types of roofing systems in the Boston area. When properly installed, asphalt roofs can perform very well and give you that 20+ year life expectancy. They also look good and are very low maintenance.

  • Slate roof: Also somewhat common in the northeast, particularly areas like Brookline, slate roofs tend to be more expensive, but last forever, look great, and withstand the elements very well. Be selective when choosing a contractor for a slate roof.

  • Tile roof: Tile roofs are less common in the Boston area. They tend to be more expensive and more laborious to install due to the weight.

  • Metal roof: Metal roofs can be made of steel, aluminum, and other types of metal. While less common on residential applications, they can be a great option for longevity and low maintenance. If being used in the Boston area, it’s a good idea to install snow guards so snow that has accumulated on the roof doesn’t slide off and hurt someone. The downside of metal is that it can dent and be loud when it rains.

  • Wood shingles: Sometimes referred to as wood shakes. These offer a more “natural” look. The shingles are quite literally thin pieces of wood installed overlapping going up the roof.

  • Rubber roof: Most commonly used on flat roofs. Large pieces of rubber are attached to the roof surface, offering much better waterproofing. Shingles can’t usually be used on flat roofs because they will absorb water over time.

Other Considerations

  • Special features:

    • Algae Resistant: Algae build up is common, especially where trees overhang a portion of your roof. Some shingle manufactuers make an algae resistant shingle.

    • Cool Roof: Cool roofing systems are newer technology that quite literally keep your home cooler in the summer.

    • Impact resistant: Great in areas with a lot of hail, these shingles are more resistant to the impact of hail or other objects.

  • Product warranty: Most quality shingle manufactuers have good warranties. You’ll just want to confirm the warranty when you purchase. Our favorite shingle manufacturer, CertainTeed, comes with a lifetime warranty.

  • Workmanship warranty: Most issues after a roof replacement are due to improper installation, so you’ll want a contractor that has a strong workmanship or labor warranty, and who you believe will stand behind it.

  • Color: Most reputable shingle lines come with a variety of colors. Black, gray and brown are the most common, but other options are usually available.

  • Cost: Roofs are usually priced out by “square” which is a 10’x10’ area of roof. Another way to think about squares is to take your total square footage of roof (which usually IS NOT equal to the square footage of your home) and divide by 100. So a roof that is 2500 sq/ft is a 25 SQ roof. Some things that can affect the cost per square of your job might be:

    • Roof material: Asphalt shingle vs flat rubber roof vs other materials will be priced quite differently.

    • Slope: extra steep roofs will usually be more expensive.

    • Layers: If your existing roof system has two layers of shingles, it will make the cost go up.

    • Poor accessibility: Again, this can make the cost go up.

Roof Installation Process

Many homeowners want to understand the process of installing a new roof, so here we will go over the typical process of replacing a asphalt shingle roof. Hope it helps!

  1. First off, a roof replacement on a standard size home should take one day. You do not want to go with a contractor that will tear off your current roof one day, and then come back another day to put the new roof on (leaving your plywood decking exposed to the elements). More complex, or larger, roofs may take 2 days, but one day is the norm

  2. Complete site prep: The first step the contractor should take is to prepare your home for the work. This means covering delicate plants with a tarp, or removing anything that might get destroyed. Some companies will even cover your gutters to prevent nails from ending up in there.

  3. Remove existing roofing system down to the plywood: The next step is to remove your existing roof system. To do the job right, everything should be take off, all the way down to the plywood decking. This allows for inspection of the plywood, and any sheets of plywood that have damage can be replaced.

  4. Ice and Water Shield: Ice and Water shield provides additional protection from ice dams and wind driven rain (essential protection for homes in New England). It should be installed on all edges of the roof, and in any valleys. Ideally, it’s applied two rows wide at the eaves.

  5. Drip edge: Drip edge is a metal flashing installed on all the rakes and eaves of your roof. It controls the direction of dripping water and helps protect the underlying building components.

  6. Synthetic Felt Underlayment: Underlayment is a felt material installed between the plywood roof deck and the shingles. It provides additional protection from the elements and better insulation.

  7. Starter Shingle: Starter shingle is the first course of shingles that is designed to work in tandem with the roof shingles for optimal shingle sealing and performance. It helps hold down the shingles placed on the edge of your roof.

  8. Shingle Installation: The next step is the installation of the actual shingles. They should be installed in staggered matter, which 4-6 nails per shingle, with approved nail types.

  9. Pipe boots, roof vents, and step flashing: Pipe boots are specially pre-formed flashing installed to waterproof pipe penetrations that exit the roof. Step flashing is pre-formed pieces of aluminum used to seal wall-to-roof joints. Your contractor should replace all flashing, not use the old flashing.

  10. Ridge vent or other venting system: Air must be able to enter through the bottom of your roof, and exit through the top. This airflow is critical for a long lasting roof. Ridge vent is one form of venting for the top of your roof. Ridge vents are one of the best ways to allow this venting. Box vents or gable end vents can also be used.

  11. Chimney flashing: Chimneys are one of the most common areas for leaks. Lead flashing should installed along the base of your chimney which provides the proper kind of waterproofing. 

  12. Full & thorough site cleanup: Your contractor should clean up your home when the work is done, not just take off and collect a check. The last thing you want is nails littering your yard that your dog or child can step on.

What makes D&G different

Clear Communication

The number one complaint homeowners have about contractors is poor (or no) communication.  We try our best to communicate throughout the whole process and set clear expectations.  Getting work done on your home shouldn't be a guessing game.

Technology

Homeowners want options and convenience.  Too many contractors still rely on paper and handshake promises. At D&G, we use technology whenever we can because it creates a much better experience for our customers.

Professionalism

Answering the phone.  Responding to your questions. Showing up on time.  Communication.  These should be industry standards, but they aren't.  We do our best to show up as professionals.

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