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Expert Construction Services in Reigate
Established over 25 years ago, Greens Building Contractors is a fully insured team of experienced domestic and commercial builders serving Reigate and surrounding areas in Surrey and West Sussex. Our services include property extensions, loft conversions, garage conversions, new home builds, and specialist listed building repairs. With a team trained in modern construction techniques and supported by a network of accredited trades, we deliver turnkey solutions with project management expertise.

Our commitment to quality workmanship compliant with UK Building Regulations has earned us a strong regional reputation, with many clients returning for repeat projects and recommending us to others. We prioritise clear communication, competitive pricing, and tailored solutions for both residential and commercial clients.
Services
Property Extensions Loft Conversions Garage Conversions New Home Builds Commercial Building Listed Building Repairs Property Refurbishment
Highlights and features
  • 25+ years of combined experience in construction and civil engineering
  • Fully insured team with time-served domestic and commercial builders
  • Competitive pricing with project management included
  • Compliant with current UK Building Regulations
  • Excellent regional reputation in Surrey and West Sussex
Associations and certifications
  • ISO 9001
  • ISO 14001
What people say
High standard Very professional Reliable contact Extra mile Would recommend
Services
Property Extensions
We construct rear-facing, side-return, wraparound and over-structure property extensions to increase living space and property value. Our services include full project management, structural calculations, and integration of electrical, plumbing, and heating systems. Clients benefit from tailored designs that maximise available space while maintaining architectural integrity.
Loft Conversions
We transform underused attic spaces into functional rooms using rooflight, dormer, mansard, or hip-to-gable styles. Our conversions include structural modifications, insulation, and access solutions while maintaining minimal disruption to homeowners. Projects comply with building regulations and include full certification.
Listed Building Repairs
Specialist repairs for listed and historic buildings using traditional techniques and materials. Our services include oak beam restoration, stonework repair, leadwork, and period-appropriate finishing. We work closely with conservation officers to preserve architectural integrity while meeting modern safety standards.
Commercial Building
Full-service commercial construction including new builds, conversions, and refurbishments. Our services cover project management, risk assessments, and compliance with ISO standards. We specialise in minimising business disruption during works and delivering functional commercial spaces to strict timelines.
Garage Conversions
We convert existing garages into habitable spaces like bedrooms, home offices, or utility rooms. Our process includes structural assessments, insulation, and integration of utilities while ensuring compliance with building regulations. Projects typically complete within 4-6 weeks with minimal property disruption.
Questions
What areas do you cover for construction services?
We cover Reigate and surrounding areas including Dorking, East Grinstead, Guildford, and Horley across Surrey and West Sussex.
Do you handle planning permission for building projects?
We provide guidance on planning requirements and can recommend architects to assist with applications for extensions, conversions, and new builds.
Are your builders qualified and insured?
Yes, our team holds relevant construction qualifications and we maintain full insurance coverage for all domestic and commercial projects.
How long do typical projects take to complete?
Project timelines vary by scope: garage conversions (4-6 weeks), loft conversions (6-8 weeks), and property extensions (3-6 months) depending on complexity.
Can you work on listed buildings?
Yes, we specialise in listed building repairs using traditional techniques and materials while maintaining historical integrity and regulatory compliance.
Do you offer project management services?
Yes, we provide full project management including trades coordination, timelines, and budget control for all construction projects.