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Trusted Construction Services in Shefford
Established over 25 years ago, R&J Building Services has built a reputation for delivering high-quality construction solutions to residential and commercial clients across Bedfordshire, Hertfordshire, Buckinghamshire, and Cambridgeshire. Led by Jon Fish, a specialist builder with over 35 years of industry experience, the company combines traditional craftsmanship with modern techniques to ensure exceptional results. Our team of skilled professionals specialises in extensions, new builds, loft and garage conversions, refurbishments, and shop fitting, offering a comprehensive service from initial design and planning to project completion.

We prioritise minimal disruption, competitive pricing, and guaranteed workmanship, supported by full public liability insurance. Our commitment to quality, reliability, and customer satisfaction has earned us recognition as one of the most highly regarded construction companies in the region, with a portfolio of repeat clients and positive testimonials attesting to our expertise.
Services
Building Extensions New Builds Loft Conversions Garage Conversions Refurbishments Shop Fitting Carpentry Design & Planning
Highlights and features
  • We have over 25 years of experience in construction services.
  • Our team offers free written quotes and guaranteed work.
  • We provide full public liability insurance for client peace of mind.
  • We work out of hours to accommodate client schedules.
  • We are widely recognised as one of the best shop fitters in the region.
What people say
Highly recommended Excellent service Professional team Superior quality Reliable and trustworthy
Services
Building Extensions
We specialise in creating functional and aesthetically pleasing extensions for residential and commercial properties. Our team ensures minimal disruption while delivering high-quality results that enhance property value. With over 25 years of experience, we handle all aspects from planning to completion.
Loft Conversions
Transform unused loft space into valuable living or working areas with our expert conversion services. We focus on structural integrity, insulation, and compliance with building regulations. Our solutions maximise space while maintaining the property's character and comfort.
Garage Conversions
Repurpose your garage into a functional room tailored to your needs, whether a home office, gym, or additional living space. We ensure seamless integration with your property's existing structure, prioritising durability and aesthetic appeal.
Shop Fitting
We deliver bespoke shop fitting solutions for retail and commercial spaces, combining functionality with striking design. Our team works outside standard hours to minimise business disruption, ensuring timely completion of projects across Herts, Beds & Bucks.
Refurbishments
Our refurbishment services revitalise properties with modern updates while preserving structural integrity. From kitchens and bathrooms to full property overhauls, we focus on quality craftsmanship and client-specific requirements to enhance usability and value.
People
Jon Fish
Director
Jon Fish, director of R&J Building Services, has over 35 years of construction experience. Starting as an apprentice, he established his company after formal training, building a reputation for reliability and excellence in residential and commercial projects across the region.
Questions
What services does R&J Building Services offer?
We provide building extensions, loft and garage conversions, refurbishments, shop fitting, carpentry, and design/planning services for residential and commercial clients.
Which areas do you cover?
We operate across Bedfordshire, Hertfordshire, Buckinghamshire, and Cambridgeshire, including towns like Shefford, Hitchin, and Milton Keynes.
How experienced is your team?
With over 25 years of experience, our team, led by Jon Fish (35+ years in construction), delivers expert craftsmanship and reliable service.
Are you insured for projects?
Yes, we have full public liability insurance to ensure client protection and peace of mind during all projects.
Can you work outside regular hours?
Yes, we accommodate out-of-hours work to minimise disruption for commercial and residential clients.