Business Details
11 Years
experience
Your Trusted Construction Partner in Chelmsford
Grant Builders is a family-run business established in 2015, though our directors bring decades of collective experience in the building trade, with Leon Grant beginning his career at age 15. Our team comprises qualified tradespeople specialising in their respective fields, ensuring high-quality execution of every project. Since building our own home in Chelmsford in 2014, we have expanded our capabilities, offering comprehensive building solutions across Essex. We operate with integrity, providing reliable and reputable services for residential clients, regardless of project scale. Our commitment to excellence has earned us a strong reputation as highly-rated builders, reflected in our glowing client reviews.As a fully insured company, we offer Public Liability Insurance up to 10 million, with certificates available on request. Our accreditation by the Federation of Master Builders underscores our dedication to quality and industry standards. We specialise in residential projects, including new builds, extensions, loft and garage conversions, structural works, and bathroom and kitchen installations. Our process begins with a ballpark quote, followed by detailed planning and transparent weekly payments, ensuring clients feel confident at every stage. With 20 years of building expertise, we prioritise communication, timeliness, and client satisfaction, leaving a lasting impression with every completed project.
Services
Extensions
Loft Conversions
Garage Conversions
New Builds
Kitchen Fitting
Bathroom Fitting
Ensuite Installation
Garden Rooms
Knock Throughs
Structural Works
Details
- Year established: 2015
Highlights and features
- Family-run business with 20 years' experience in residential construction.
- Accredited by the Federation of Master Builders for quality assurance.
- Public Liability Insurance up to 10 million for client protection.
- Personal experience building our own home to inform client projects.
- Transparent weekly payment plans aligned with project progress.
Associations and certifications
- Federation of Master Builders
What people say
Fantastic job
Reliable and trustworthy
On time
Well worth it
Highly recommended
Services
Extensions
We specialise in creating additional living spaces through rear, side, and front extensions. From initial design to completion, we ensure projects align with permitted development rights, offering transparent pricing and weekly progress tracking. Our team manages groundworks, structural changes, and finishes, delivering functional, value-adding extensions tailored to client needs.
Loft Conversions
Transform unused loft space into bedrooms, offices, or recreational areas. Our process includes structural reinforcement, insulation, and ensuite installations without requiring planning permission in most cases. Projects typically take 1012 weeks, minimising disruption while maximising home value and usability.
Garage Conversions
Convert underused garages into home gyms, guest rooms, or studies without planning permission in most cases. Completed in three weeks, our conversions include structural adjustments, electrical upgrades, and finishing touches, adding practical space and property value with minimal disruption.
New Builds
From foundations to finishes, we construct bespoke homes using expertise gained from building our own property. We collaborate with architects and engineers, manage permits, and offer phased payments, ensuring quality and transparency throughout the 10-year project lifecycle.
Bathroom Fitting
We design and install bathrooms tailored to client preferences, combining functionality with aesthetic appeal. Services include plumbing, tiling, and finishing touches, with examples showcased in our portfolio to demonstrate our attention to detail and client-centric approach.
Questions
What types of building projects do you handle?
We specialise in extensions, loft and garage conversions, new builds, kitchen and bathroom installations, structural works, and home renovations across Chelmsford and Essex.
Do I need planning permission for a loft conversion?
Most loft conversions don't require planning permission under permitted development rights, but exceptions exist. We can advise on specific requirements for your project.
How long does a garage conversion take?
Garage conversions typically take three weeks to complete, depending on complexity, with minimal disruption to your daily routine.
What payment methods do you accept?
We accept weekly payments aligned with project milestones, with a 5% deposit required to secure your booking.
Are you insured and accredited?
Yes, we hold £10 million Public Liability Insurance and are accredited by the Federation of Master Builders for quality assurance.
Reviews (3)
Sharon Bannister
Jul 23, 2017
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What can I say! I love these these guys! Liked the fact there's also a woman very much included in the operation, that will be Kat, Leon's wife. All the boys were polite, respectful and hard working. Leon the boss man always in and out or at the end of a telephone if needed. I run my business from home so was amongst the building work the entire time, what would have been an extremely stressful time, ran very smoothly and I didn't kill one person!
Nothing was too much trouble, they tidied up everyday even though at times I told them not to, Alex even swept my lawn! I would never recommend another builder now I've used Grant Builders and anyone looking to have work done would be foolish to use anyone else! Even my neighbours found them great! So a massive thank you to Leon, Kat, Ryan, Alex, Lee, Jake and Carl for creating my "amazing space"
Nothing was too much trouble, they tidied up everyday even though at times I told them not to, Alex even swept my lawn! I would never recommend another builder now I've used Grant Builders and anyone looking to have work done would be foolish to use anyone else! Even my neighbours found them great! So a massive thank you to Leon, Kat, Ryan, Alex, Lee, Jake and Carl for creating my "amazing space"
Heidi Hards
Mar 28, 2017
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Absolutely AMAZING. Just finished our 2 storey wrap around extension. Could not recommend more, we were very worried about choosing a builder but from the very beginning to way past the end Grant Builders have been fantastic. Made absolutely comfortable from the initial quote to ensuring we are satisfied with everything. Finished early with no compromise on quality which is outstanding. Team of workers were brilliant, friendly, polite, helpful and very punctual.
We were kept informed all the way through build as to next steps, all our questions immediately answered. I had no hesitation about leaving keys and going to work. Workers were SO tidy, and cleaned up every day! We have recommended to many friends who are snapping them up. Kat and Leon would be my first choice for any future work and we can't wait to have them back again to do the kitchen and bathroom I only hope that they are not now so busy they can't fit us in. Cannot recommend enough.
We were kept informed all the way through build as to next steps, all our questions immediately answered. I had no hesitation about leaving keys and going to work. Workers were SO tidy, and cleaned up every day! We have recommended to many friends who are snapping them up. Kat and Leon would be my first choice for any future work and we can't wait to have them back again to do the kitchen and bathroom I only hope that they are not now so busy they can't fit us in. Cannot recommend enough.
Jean Harper
Jan 22, 2017
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We are delighted with our bedroom and ensuite extension. Leon and Katherine are both friendly and professional, the building team were excellent both in the quality of their work and their attention to detail. Leon accommodated every small change we wanted and still finished the project on time and on budget. We thoroughly recommend them and would willingly use them again. Tom & Jean
