Business Details
43 Years
experience
Emergency
services
Cambridge Building Contractors
Established in 1983, M.J Salmon & Son has built a reputation as a trusted building contractor serving Cambridge and surrounding areas. With over four decades of experience, we specialise in house extensions, loft conversions, new builds, and comprehensive renovation projects. Our team combines traditional craftsmanship with modern techniques to deliver high-quality results tailored to each client's needs. We prioritise clear communication, realistic pricing, and dedicated project management to ensure every client receives honest, transparent service. Our commitment to excellence is reflected in our use of premium materials and a skilled workforce, including Part P registered electricians and accredited Viessman boiler installers. With 80% of our work coming from referrals, we take pride in maintaining long-term relationships with our clients.Our approach focuses on minimising disruption to daily life while maximising property value through meticulous attention to detail. From initial consultation to project completion, we maintain rigorous quality control and provide detailed quotations with no hidden costs. Our team's expertise extends to complex architectural designs and emergency repairs, supported by a network of trusted subcontractors. We are committed to fostering industry talent through apprenticeship programs while maintaining accountability as a local business. This combination of experience, reliability, and community focus has earned us consistent positive feedback from both private and commercial clients.
Services
House Extensions
Loft Conversions
Kitchens
New Builds
Garage Conversions
Insulating your Home
Roofing
Details
- Year established: 1983
Highlights and features
- We deliver on schedule and on budget
- Minimising the effect our work has on your day to day living
- High quality workmanship
- Competitive pricing
- An excellent reputation with 80% of our work coming via referrals
Associations and certifications
- Part P
- Viessman
What people say
Excellent work
Promptly and efficiently
High quality workmanship
Fantastic service
Top class job
Services
House Extensions
We design and construct custom house extensions that enhance property value and living space. Our team manages all aspects from planning permission to final finishes, ensuring seamless integration with existing structures. Clients benefit from our 40 years of experience in creating functional, aesthetically pleasing extensions that meet exact specifications while maintaining minimal disruption to household routines.
Loft Conversions
Specialist loft conversion services that maximise unused space while adhering to building regulations. Our conversions include dormer extensions, Velux window installations, and structural reinforcements. We provide complete project management from initial design to final certification, ensuring safe, energy-efficient living spaces that add significant value to properties across Cambridge and surrounding areas.
Kitchens
Comprehensive kitchen design and installation services using premium materials and modern techniques. Our team coordinates all aspects including plumbing, electrics, and cabinetry to create functional, stylish spaces. We work closely with clients to ensure optimal layouts and storage solutions while maintaining strict timelines and budgets for both domestic and commercial properties.
Garage Conversions
Professional garage conversion services that create habitable spaces meeting all regulatory requirements. We handle structural modifications, insulation, and utility connections to transform garages into functional rooms. Our approach prioritises energy efficiency and seamless integration with existing property architecture while maintaining minimal disruption to property owners during the conversion process.
Roofing
Full roofing services including repairs, replacements, and maintenance for residential and commercial properties. Our certified team uses durable materials and modern techniques to ensure watertight, long-lasting solutions. We specialise in both traditional and contemporary roofing systems, providing expert assessments and cost-effective solutions while maintaining strict safety standards throughout all projects.
People
Matt Salmon
Director
Third-generation builder with over 20 years' experience leading complex projects. Specialises in managing large-scale renovations while maintaining personal client relationships. Committed to quality control and apprenticeship programs.
Kieran
Roofing Specialist
Experienced roofer with expertise in traditional and modern roofing systems. Focuses on precision installation and maintenance solutions while ensuring minimal disruption to property occupants during works.
Neil
Project Manager
Senior project manager specialising in contemporary architectural projects. Ensures adherence to timelines and budgets while maintaining high standards of workmanship across all construction phases.
Alfie
Apprentice
Trainee builder participating in our apprenticeship program. Focuses on developing skills across multiple trades while learning from experienced professionals in various construction disciplines.
Mark
Carpentry Specialist
Skilled carpenter with expertise in loft conversions and custom joinery. Specialises in precision woodwork and structural modifications while maintaining strict safety standards throughout all projects.
Questions
What areas do you cover for building projects?
We operate throughout Cambridge and surrounding areas including Histon, Bar Hill, Horningsea, and Swaffam Bulbeck.
How long does a typical house extension take?
Project duration varies by complexity but most extensions complete within 3-6 months with minimal disruption to residents.
Are you registered with any accreditation bodies?
Our electricians are Part P registered and we are accredited Viessman boiler installers with 5-year warranties.
Can you handle emergency building repairs?
Yes, we provide urgent repair services for structural issues and property emergencies with 24-hour response times.
Do you work with architects and designers?
We collaborate with architects and design professionals to deliver complex projects meeting exact specifications and planning requirements.
What guarantees do you offer on your work?
We provide comprehensive guarantees on all projects with detailed warranties for specific components and installations.
Reviews (2)
Rachel Allchorne
Nov 25, 2020
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We enlisted the services of Matt and his team to construct a wrap-around ground floor extension. The entire team displayed a high level of professionalism, and the build quality and finishing were superb. They managed to complete the project within the agreed budget, which was impressive. We highly recommend their services without hesitation.
Jane Horwood
Aug 23, 2018
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We appointed MJ Salmon last year to extend our living and kitchen area. We got 2 quotes and chose MJS because we liked their approach and felt that having a project manager to oversee everything and be responsible for all the trades involved would make the process as hassle free as possible. We were right. MJS has a core team but also access to an extended team of groundmen, plasterers, painters, plumbers and electricians.
All these people are tried and tested so the quality of work is assured and, I have to say, we were very impressed with the attention to detail and that at every stage of the process this work was reviewed and checked. All the tradespeople we met were polite and courteous. It was also obvious from watching them work that they were experienced professionals. It turned out to be a bigger project than we thought but all the work carried out by MJS remained within budget.
We could not be happier with the result which really has the WOW factor. We have no hesitation in recommending MJ Salmon and have already done so on several occasions. We are currently using them to revamp our utility room.
All these people are tried and tested so the quality of work is assured and, I have to say, we were very impressed with the attention to detail and that at every stage of the process this work was reviewed and checked. All the tradespeople we met were polite and courteous. It was also obvious from watching them work that they were experienced professionals. It turned out to be a bigger project than we thought but all the work carried out by MJS remained within budget.
We could not be happier with the result which really has the WOW factor. We have no hesitation in recommending MJ Salmon and have already done so on several occasions. We are currently using them to revamp our utility room.
