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Business Details
50+ Years
experience
Professional Building Contractors in York
L & G L Osguthorpe Builders have been delivering professional building services across North Yorkshire for over 50 years. Established as a family-run operation, our team combines deep local knowledge with extensive expertise in home conversions, extensions, and property maintenance. Specialising in loft conversions, garage conversions, and driveway installations, we work closely with clients to transform their vision into functional, high-quality spaces. Our accreditation with the Federation of Master Builders and A1 certification from the National House Builders Council reflect our commitment to industry standards. We handle every project stage from initial consultation to completion, including coordinating architects when required, ensuring seamless execution.

With a focus on using premium materials and traditional craftsmanship, we serve both residential and commercial clients throughout North Yorkshire. Our comprehensive service portfolio includes block paving, fibreglass roofing, damp proofing, and storm damage repairs, addressing diverse construction needs. As experienced builders with decades of local experience, we prioritise clear communication and tailored solutions to meet individual client requirements. Our reputation for reliability and quality has been built through consistently delivering projects on time and to exacting standards. Whether expanding living space or undertaking essential maintenance, clients benefit from our expertise, attention to detail, and dedication to customer satisfaction.
Services
Loft Conversions Home Extensions Paving Installations Building Maintenance Storm Damage Repairs Fibreglass Roofing Damp Proofing Wall Rendering Garage Conversions Kitchen Extensions
Details
  • Year established: 1975
Highlights and features
  • Over 50 years of combined building experience in North Yorkshire
  • Family-run business with personal project oversight
  • Federation of Master Builders accreditation for quality assurance
  • Complete service from concept to completion
  • Skilled team handling projects of all sizes
Associations and certifications
  • Federation of Master Builders
  • National House Builders Council
Services
Loft Conversions
Transform unused loft space into functional rooms including bedrooms, playrooms, or home offices. Using quality materials and 50+ years of experience, we create durable conversions that add significant property value. Our process includes structural assessment, planning permission assistance, and complete interior finishes tailored to client requirements.
Home Extensions
Create additional living space through single or double storey extensions. We specialise in kitchen extensions and room additions that integrate seamlessly with existing structures. Our approach combines modern techniques with traditional craftsmanship to deliver extensions that enhance both functionality and aesthetic appeal over multiple decades.
Paving Installations
Supply and install durable block paving solutions in various colours and patterns. Our services cover complete driveway construction, pathway installation, and patio creation using high-quality materials designed to withstand heavy use. Each project includes ground preparation, edging, and jointing compounds for long-term stability.
Building Maintenance
Provide comprehensive repair and maintenance services including chimney re-pointing, guttering repairs, and storm damage restoration. Our skilled team addresses both minor and major structural issues to preserve property integrity. Regular maintenance programmes help prevent deterioration and extend building lifespan.
Fibreglass Roofing
Install durable, waterproof fibreglass roofing systems for extensions and outbuildings. This lightweight solution offers superior weather resistance and requires minimal maintenance. Our installations include proper insulation and drainage provisions to ensure long-term performance and energy efficiency.
Questions
What building services do you specialise in?
We specialise in loft conversions, home extensions, block paving, fibreglass roofing, damp proofing, and commercial property maintenance across North Yorkshire.
How long have you been operating in North Yorkshire?
Our builders have served North Yorkshire for over 50 years, with a family business heritage spanning multiple generations in the construction industry.
Can you handle both residential and commercial projects?
Yes, we undertake all types of domestic and commercial building work including conversions, extensions, and maintenance contracts.
What's your project management approach?
We manage projects from concept to completion, offering architectural coordination, material sourcing, and regular progress updates to ensure client satisfaction.
Are you accredited by construction industry bodies?
We have Federation of Master Builders membership and National House Builders Council A1 accreditation for quality assurance.
Do you offer guarantees on your work?
We provide standard warranties on materials and workmanship in accordance with manufacturer specifications and industry best practices.