Quantum Build Services Limited
Sutton
Checkatrade member since January 2026
Services
- Brick / Concrete Structural Repairs
- Emergency Builder Service
- Extensions / Conversions
- Garage Conversions
- Garden Studios
- General Building
- Loft Conversions
- Partition Walls
- Refurbishments
- Property Maintenance / Repair
- Chimney Cowlings Installation
- Chimney Cowlings Repair
- Chimneys Installation
- Chimneys Repair
- Dormer / Roof Windows
- Dry Ridge Installation
- Dry Ridge Repair
- Dry Verge Installation
- Dry Verge Repair
- Felt Roofing Installation
- Felt Roofing Repair
- Flat Roofing Installation
- Flat Roofing Repair
- Leadworks Installation
- Leadworks Repair
- Liquid Plastic Roofing Installation
- Liquid Plastic Roofing Repair
- Moss Removal
- Pitched Roofing Installation
- Pitched Roofing Repair
- Ridged Tiles Installation
- Ridged Tiles Repair
- Roof Inspection Report
- Roof Lights Installation
- Roof Lights Repair
- Roof Replacement
- Roofing Repairs
- Rubber Roofing Installation
- Rubber Roofing Repair
- Slate / Tiled Roofing Installation
- Slate Roof Installation
- Slate Roofer Repair
- Tiled Conservatory Roof Installation
- Tiled Conservatory Roof Repair
- Warm Roof Construction
Customer Reviews
Write a review9.8 /10
Based on 5 reviews over the past 12 months
Quality of work
9.8
Reliability
9.8
Communication
9.8
Reviews (5)
10 Excellent work and high standards
Posted 24 January
I have used Quantum for multiple client works, just by the fact I continue to use his services should tell you everything that you need to know. Gary`s work is always to a extremely high standards, on time and most importantly within budget. I would not hesitate to recommend his services..Verified reviewerJob location: GU1410 Good all round builder
Posted 24 January
Job location: SM3Have used this company a few times - would definitely recommend them9 Loft & kitchen extensions
Posted 24 January
I’ve used Gary for both our loft and kitchen extensions and would highly recommend to anyone wanting a reliable builder. Gary and his team are thorough and meticulous with their planning and approach. We are very happy with both builds and would use again! Steve & EmmaVerified reviewerJob location: SM310 5 stars, great work completed
Posted 23 January
Gary and his team recently replaced our garage roof and did an amazing job. Communicated well, on time, clean and tidy and respectful of our neighbours property. Highly recommend Gary.Verified reviewerJob location: SM310 The best roofers around !
Posted 23 January
Job location: SM3An amazing company 😊 Would definitely recommend if your looking for an exceptional team to complete works to the highest standards !!!
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Company Info
Owner
Mr Gary Donovan
Ltd Company
Member since 2026
VAT Registered
No
Building with Experience
Quantum Build Services Ltd is a trusted roofing and building company with over 25 years of experience. We deliver high-quality workmanship, honest advice, and a reliable service on every project.
We specialise in all aspects of roofing, from repairs to full roof replacements, and also carry out loft conversions and property extensions, providing complete building solutions with attention to detail throughout.
Services include: pitched and flat roofing, slate and tiled roofs, roof replacements and repairs, chimney works, dry ridge and verge systems, leadwork, roof windows and lights, moss removal, roof inspections, warm roof construction, loft conversions, and extensions.
This trade passed up to 12 Checkatrade vetting checks
Member since January 2026
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