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Find Natural slate roofing repairers in Londonderry

Apex Roofing and Skylight Service

4.74(
73
)
Approved Pro

Apex Roofing and Skylight Service

4.74(
73
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
44 years of experience

Apex Roofing and Skylight Service, has established itself as a leader in the marketplace since 1981. Our experienced employees have been providing the highest quality roofing for many years. Call us today!

"Don contacted me within a day of my initial inquiry and voice mail. He explained to me over the phone what he thought the problem was with my leaky roof and then gave me an estimate. He came the very next day and fixed my roof within a few hours. He explained everything he was doing, kept me updated throughout the project and provided me with a thorough run down of the work he did, the expected remaining life of my roof, and other general roof and shingle related information. His rates were very reasonable and he did not try to convince me that I needed an entire new roof - in fact, he assured me that I could get another 10 years out of it and thus was making the right decision with this repair."

Kerry L on January 2023

Apex Roofing and Skylight Service, has established itself as a leader in the marketplace since 1981. Our experienced employees have been providing the highest quality roofing for many years. Call us today!

"Don contacted me within a day of my initial inquiry and voice mail. He explained to me over the phone what he thought the problem was with my leaky roof and then gave me an estimate. He came the very next day and fixed my roof within a few hours. He explained everything he was doing, kept me updated throughout the project and provided me with a thorough run down of the work he did, the expected remaining life of my roof, and other general roof and shingle related information. His rates were very reasonable and he did not try to convince me that I needed an entire new roof - in fact, he assured me that I could get another 10 years out of it and thus was making the right decision with this repair."

Kerry L on January 2023


Avatar for KTM Exteriors & Recycling LLC

KTM Exteriors & Recycling LLC

5.00(
7
)
Approved Pro

KTM Exteriors & Recycling LLC

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 local quotes requested

For over 30 years, KTM Exteriors & Roofing has been providing exterior improvements for home and business owners. Exterior improvements | Commercial roofing | New roof installation | Roof replacement | Siding installation | Siding replacement | Window replacement | Window installation | Dumpster rentals | Snow removal | Demolition work | Roof coatings | Asphalt Roofing | Rubber Membrane Roofing. KTM Exteriors & Roofing offers a wide range of exterior improvements and recycling services in Hampstead, NH, the Metro Boston area, and throughout Southern Maine.

"One of the best contractors in industry. Competitive pricing, easy to work with, and trust. Matt Parise Territory Manager, Northeast SRS Distribution | Heritage"

Parise M on October 2024

For over 30 years, KTM Exteriors & Roofing has been providing exterior improvements for home and business owners. Exterior improvements | Commercial roofing | New roof installation | Roof replacement | Siding installation | Siding replacement | Window replacement | Window installation | Dumpster rentals | Snow removal | Demolition work | Roof coatings | Asphalt Roofing | Rubber Membrane Roofing. KTM Exteriors & Roofing offers a wide range of exterior improvements and recycling services in Hampstead, NH, the Metro Boston area, and throughout Southern Maine.

"One of the best contractors in industry. Competitive pricing, easy to work with, and trust. Matt Parise Territory Manager, Northeast SRS Distribution | Heritage"

Parise M on October 2024


Avatar for True North Roofing

True North Roofing

4.98(
23
)
Approved Pro

True North Roofing

4.98(
23
)
Approved Pro
Customers say: Quick response
37 local quotes requested
3 years of experience

Welcome to True North Roofing, proudly servicing Waldo and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"David, you did a wonderful job installing the roof, and I truly appreciate how thorough the cleanup was afterward. Thank you so much for your hard work and professionalism."

Katherine P on November 2025

Welcome to True North Roofing, proudly servicing Waldo and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"David, you did a wonderful job installing the roof, and I truly appreciate how thorough the cleanup was afterward. Thank you so much for your hard work and professionalism."

Katherine P on November 2025


Avatar for Adam Vaillancourt Roofing & Construction LLC

Adam Vaillancourt Roofing & Construction LLC

4.80(
66
)
Approved Pro

Adam Vaillancourt Roofing & Construction LLC

4.80(
66
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
167 local quotes requested

Adam Vaillancourt Roofing & Gutters is Chelmsford’s go-to roofing contractor, proudly serving Southern New Hampshire, Northern Massachusetts, and Southern Maine. We specialize in residential and commercial roof replacement, roof repair, and roof maintenance—including asphalt shingles, flat roofing, and premium metal systems. Our team uses top-quality materials and industry-best installation practices to protect your home for the long haul. We also offer expert gutter solutions with Gutter Shutter® systems, professional roof cleaning and rejuvenation, skylight repair and replacement, and attic ventilation services. With a reputation built on trust, craftsmanship, and customer-first service, Adam Vaillancourt Roofing is committed to you.

"Everything from the phone call to set up the appointment to the expected wait time for the job to be addressed to the completed project was handled in a professional yet friendly manner. The estimate was explained well and appropriate expectation was set as to the time involved to complete the project and when the job could be scheduled."

Lynda V on December 2024

Adam Vaillancourt Roofing & Gutters is Chelmsford’s go-to roofing contractor, proudly serving Southern New Hampshire, Northern Massachusetts, and Southern Maine. We specialize in residential and commercial roof replacement, roof repair, and roof maintenance—including asphalt shingles, flat roofing, and premium metal systems. Our team uses top-quality materials and industry-best installation practices to protect your home for the long haul. We also offer expert gutter solutions with Gutter Shutter® systems, professional roof cleaning and rejuvenation, skylight repair and replacement, and attic ventilation services. With a reputation built on trust, craftsmanship, and customer-first service, Adam Vaillancourt Roofing is committed to you.

"Everything from the phone call to set up the appointment to the expected wait time for the job to be addressed to the completed project was handled in a professional yet friendly manner. The estimate was explained well and appropriate expectation was set as to the time involved to complete the project and when the job could be scheduled."

Lynda V on December 2024


Craig Smith

4.66(
49
)
Approved Pro

Craig Smith

4.66(
49
)
Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
47 local quotes requested

We have over 40 years of experience in the business. Here at C Smith & Sons, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Craigs guys did great job!"

Daniel M on July 2025

We have over 40 years of experience in the business. Here at C Smith & Sons, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Craigs guys did great job!"

Daniel M on July 2025


Avatar for Tar Star Roofing

Tar Star Roofing

4.90(
69
)
Approved Pro

Tar Star Roofing

4.90(
69
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
170 local quotes requested

Tar Star Roofing is the premier Roofing company serving New Hampshire and Massachusetts for over a decade. Our #1 goal as a company is having complete customer satisfaction and there is no job that is too big or too small. If you want your job done right, call Anthony today !

"Anthony of Tar Star Roofing was referred to me by my real estate agent, and was everything the agent said—honest, reasonably priced, expert, reliable, easy to work with. Tar Star got the job done in no time, and from the photos, the chimney and shingle repairs look amazing! Thank you, Tar Star!!"

Jon C on October 2025

Tar Star Roofing is the premier Roofing company serving New Hampshire and Massachusetts for over a decade. Our #1 goal as a company is having complete customer satisfaction and there is no job that is too big or too small. If you want your job done right, call Anthony today !

"Anthony of Tar Star Roofing was referred to me by my real estate agent, and was everything the agent said—honest, reasonably priced, expert, reliable, easy to work with. Tar Star got the job done in no time, and from the photos, the chimney and shingle repairs look amazing! Thank you, Tar Star!!"

Jon C on October 2025


Avatar for On Top Roofing

On Top Roofing

4.84(
148
)
Approved Pro

On Top Roofing

4.84(
148
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
22 local quotes requested

We are a full service roofing company. Our focus is in residential and commercial roofing, We work with many manufacturers for all types of roofing from metal to asphalt shingles to all types of low slope roofing membranes. Additional phone - (508) 299-7663.

"Called On top roofing for an estimate, it took several weeks to get back to us, got the estimate and agreed to have the work done. A few guy showed up one day and started working, we were not notified they were coming to work,good thing we were here that day. They did the job and left without ever communicating with us about the work. We did a walk around and discovered that some of the work was not completed. So called the company back and the owner came out to look at the job, he said it would be about another $100. To complete. We were not happy because this was supposed to be in the estimate we agreed on. The workers show up again unannounced and did the job. We then received a bill for $200. More, again this was not what was agreed upon when talking to owner. We were hoping to form a relationship with this company for future work, but that's not going to happen, there was no communication and even with a written contract they will somehow charge you more than agreed on."

Mike C on September 2024

We are a full service roofing company. Our focus is in residential and commercial roofing, We work with many manufacturers for all types of roofing from metal to asphalt shingles to all types of low slope roofing membranes. Additional phone - (508) 299-7663.

"Called On top roofing for an estimate, it took several weeks to get back to us, got the estimate and agreed to have the work done. A few guy showed up one day and started working, we were not notified they were coming to work,good thing we were here that day. They did the job and left without ever communicating with us about the work. We did a walk around and discovered that some of the work was not completed. So called the company back and the owner came out to look at the job, he said it would be about another $100. To complete. We were not happy because this was supposed to be in the estimate we agreed on. The workers show up again unannounced and did the job. We then received a bill for $200. More, again this was not what was agreed upon when talking to owner. We were hoping to form a relationship with this company for future work, but that's not going to happen, there was no communication and even with a written contract they will somehow charge you more than agreed on."

Mike C on September 2024


D's Homeworks

4.50(
2
)
Approved Pro

D's Homeworks

4.50(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 local quotes requested

D’s Homeworks is a premier roofing and siding company based in Nashua, NH. What sets us a notch above the rest is our unbeatable industry experience. In fact, over the past two decades, we have continued to evolve and adapt to our customers’ changing needs. This level of versatility is what allows us to offer excellent roofing and siding solutions that meet and exceed expectations every single time.

"He got the job done for an earnest price. Good clear communication. I'm very happy with the results."

Justin G on January 2025

D’s Homeworks is a premier roofing and siding company based in Nashua, NH. What sets us a notch above the rest is our unbeatable industry experience. In fact, over the past two decades, we have continued to evolve and adapt to our customers’ changing needs. This level of versatility is what allows us to offer excellent roofing and siding solutions that meet and exceed expectations every single time.

"He got the job done for an earnest price. Good clear communication. I'm very happy with the results."

Justin G on January 2025


Avatar for Power Home Remodeling

Power Home Remodeling

4.60(
835
)
Approved Pro

Power Home Remodeling

4.60(
835
)
Approved Pro
Customers say: Quality work
295 local quotes requested
33 years of experience

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"This company completely took advantage of my MIL with high pressure sales. She did not need her roof redone yet they convinced her she needed it and 30k$ later she has a new roof she didn't need or want. You should be ashamed of yourselves."

Tim O on September 2025

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"This company completely took advantage of my MIL with high pressure sales. She did not need her roof redone yet they convinced her she needed it and 30k$ later she has a new roof she didn't need or want. You should be ashamed of yourselves."

Tim O on September 2025


Avatar for All Under One Roof

All Under One Roof

4.94(
108
)
Approved Pro

All Under One Roof

4.94(
108
)
Approved Pro
Customers say: Quality work
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
32 local quotes requested

Established in 1976, All Under One Roof has the experience and expertise to get the job done right the first time. Our skilled professionals use only the finest tools and materials for your residential or commercial project. We guarantee our work and your satisfaction.

"Overall it went great. John was down quickly after I first contacted him. He came out in person to give me information and confirm the online measurements. Between meeting him, reading the reviews online, and the impeccable warranty I felt very comfortable choosing him (the price was in the middle of the other quotes I got). The whole process took 3 real long days. Obviously it is loud and disruptive while they are working... but you only need a new roof once. I would suggest not parking in your driveway as there are a lot of people and trucks. At the end they cleaned up very nicely. They are a legit roofing company so they pull permits. Overall I am quite please for the job, cost, time etc."

Jason B on May 2024

Established in 1976, All Under One Roof has the experience and expertise to get the job done right the first time. Our skilled professionals use only the finest tools and materials for your residential or commercial project. We guarantee our work and your satisfaction.

"Overall it went great. John was down quickly after I first contacted him. He came out in person to give me information and confirm the online measurements. Between meeting him, reading the reviews online, and the impeccable warranty I felt very comfortable choosing him (the price was in the middle of the other quotes I got). The whole process took 3 real long days. Obviously it is loud and disruptive while they are working... but you only need a new roof once. I would suggest not parking in your driveway as there are a lot of people and trucks. At the end they cleaned up very nicely. They are a legit roofing company so they pull permits. Overall I am quite please for the job, cost, time etc."

Jason B on May 2024

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FAQs for natural slate roofing repair projects in Londonderry, NH

If more than 30% of your slate roof is damaged, it's time to consider a full replacement. This will prevent further deterioration and avoid costly recurring repairs. A professional slate inspection (costing between $130 and $360) can confirm whether repairs are sufficient or if a full roof replacement is the better option.

A slate roof can last anywhere from 60 to 150 years, depending on factors like installation quality, regular maintenance and repairs, and local weather conditions. Compared to materials like clay and concrete, which often last around 50 years, a well-maintained slate roof offers superior longevity, durability, and long-lasting aesthetic appeal.

Yes, you can use temporary patch solutions, such as roofing cement or patchwork, to provide immediate relief for minor leaks or underlayment issues observed from inside your home. However, these provisional fixes do not replace the need for a permanent, professional exterior repair, which is necessary to ensure the long-term integrity and weather resistance of your slate roof.

The Londonderry, NH homeowners’ guide to natural slate roofing repairs

From average costs to expert advice, get all the answers you need to get your job done.