Business Details
Your Trusted Partner for Basement & Loft Conversions in Manchester
Established over four decades ago, UP & UNDER has become Manchester's leading specialist in basement and loft conversions. Our expertise in waterproofing and transforming underutilised spaces dates back to our founding, with a proven track record of delivering high-quality, client-focused solutions. We offer a comprehensive service that includes initial surveys, design, and project management, ensuring seamless execution from concept to completion. Our commitment to industry standards is demonstrated through adherence to BWPDA guidelines and provision of insurance-backed guarantees.We prioritise environmentally tested materials and maintain transparent communication throughout every project phase. Client testimonials consistently highlight our professionalism, attention to detail, and ability to deliver complex conversions within agreed timelines. Our dedicated architectural team and in-house specialists ensure technically sound solutions that maximise property value while meeting individual client requirements.
Services
Basement Conversion
Loft Conversion
Waterproofing
Design Service
Commercial Conversions
Highlights and features
- We offer over 40 years of specialist experience in basement waterproofing and conversions
- Our team provides free, no-obligation quotations with detailed project planning
- We maintain full transparency with clients throughout the entire conversion process
- Our conversions use environmentally tested materials compliant with HSE standards
- We deliver guaranteed results with insurance-backed 10-year warranties
Associations and certifications
- British Waterproofing Association (BWPDA)
- Guarantee Protection Agency (GPA)
What people say
Excellent work
Very professional
Increased property value
Energy-efficient solutions
Transparent communication
Services
Basement Conversion
Transforming underutilised basement spaces into habitable rooms while addressing waterproofing challenges. Our specialists create functional living areas that meet building regulations and enhance property value. The process includes comprehensive surveys, tailored design solutions, and project management from start to finish.
Loft Conversion
Maximising roof space potential through custom-designed living areas that comply with building regulations. Our conversions incorporate structural reinforcements, insulation, and access solutions to create valuable additional space. Projects typically increase property value by approximately 20% according to industry benchmarks.
Waterproofing
Specialist installation of cavity drainage membranes and sump pump systems to protect subterranean spaces. Our 25-year track record demonstrates proven effectiveness against rising water tables. Solutions combine technical expertise with long-term durability for both residential and commercial properties.
Design Service
Comprehensive design solutions tailored to conversion projects, including structural calculations and planning permissions. Our retained architectural team ensures technically sound proposals that optimise space utilisation while meeting regulatory requirements. This integrated approach streamlines the conversion process.
Commercial Conversions
Specialist conversion solutions for commercial clients including architects, surveyors, and property developers. We provide technical expertise and guaranteed specifications without sales-driven agendas. Our services support commercial projects with accurate diagnostics and cost-effective implementation strategies.
Questions
What areas do you cover for basement conversions?
We operate across Manchester and surrounding areas including Altrincham, Didsbury, Bowden, Stockport, Hale, Chorlton, Sale, and Urmston.
Do loft conversions require planning permission?
Many loft conversions fall under permitted development rights, though specific requirements depend on property type and location. We advise on all regulatory requirements.
What guarantees do you provide?
All conversions include 10-year insurance-backed guarantees through the Guarantee Protection Agency as standard.
How long does a typical basement conversion take?
Project duration varies by complexity, but most residential conversions complete within 8-12 weeks including waterproofing and finishing works.
Can you convert awkwardly shaped basements?
Our specialists design tailored solutions for challenging spaces, incorporating bespoke features like wine racks, gyms, or multi-functional rooms as required.
Do you handle commercial conversion projects?
Yes, we work with architects, surveyors, and commercial clients on both residential and commercial conversion projects across Greater Manchester.
