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G.J. Ryan

Your Local, Trusted Family Business

34 Havelock Rd, Harrow, HA3 5SA Directions

Tel 020 8863 8474
Mob 07885 416403
   Open 24 Hours

Why Choose Us?

First Class Service
Local Business
Well Established

Business overview


G J Ryan Roofing Specialists in Harrow Established 1986

We are a well-established, local, family run roofing company with a strong reputation for offering excellent service, promptly and within budget.

We have successfully repaired all kinds of pitched and flat roofs for houses & apartments over many years. Whether you require a Roof Repair or indeed a complete Roof Installation, regardless of the size of the roofing project, we guarantee that we will always complete your roofing project to the highest possible standard.


1. We are a local, friendly, family run company with 30 years+ experience in all aspects of roofing.

2. We offer free quotations with no obligation or pressure.

3. We are fully insured and do not charge a call out fee.

Specialists in:

New Roofs

Flat Roofs & Felt Roofs

Fascia Boards

Guttering, Tiling, Slating

Roof Repairs

Storm Damage Repair Work

Chimney Repointing & Leadwork

We can also undertake insurance work.

Products & Services

Free Quotes

Free Initial Consultation

Established Since: 1986

Fascias & soffits

Felt roofs

Flat roof repairs

Gutter cleaning

Gutter repairs

Guttering services


Roof cleaning

Roof repairs

Roof tiling

Roofing services

Slate roofing

Roof conversions

Roof windows / Velux windows

Storm roof damage repairs

Slate Roofs & Roof Tiles

Chimneys Repointed

New garage roofs


Excellent work undertaken well.

Very pleased with the service from Gerry and his team. We were kept updated on when the scaffolders and roofers would be on site and all turned up promptly. We engaged them to replace some guttering which included having special joints made up as the new guttering was to go around a non-standard shaped bay window. The recent work was carried out to a very high standard. Previously we had used Gerry and his team to re-roof our house, which was also done to a very high standard. Indeed, we have had lots of comments from builders in the area about how good the replacement roof was. We would recommend G J Ryan for any roofing and guttering work.
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5star job

Really happy with the work carried out , efficient and professional would not hesitate to use this company again Jo cilia
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Very impressed with service provided

Very impressed with the service provided G J Ryan. Firstly, a prompt response when I contacted them. They were able to replace Fascia Board that was a little worse for wear, its looks so much better now. They also sourced some very difficult to get hold of ridge tiles for the top of my roof and installed them. All of the above was completed professionally and at a very reasonable price for which I am very grateful.
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Great Roofing Company

GJ Ryan have done a few jobs for me. A small team with loads of experience. Very efficient friendly and professional.
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Garage roof repair

Renewed rotted boards and refelted mums garage roof friendly reliable very clean and tidy fair price have recommended to freinds
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