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Expert Basement Conversion Services in Altrincham
Altrincham Basement & Cellar Conversions is a family-run business specialising in transforming underutilised basement and cellar spaces into functional living areas. With over a decade of experience, we combine inspirational design solutions with quality craftsmanship to deliver tailored projects from concept to completion. Our team oversees every aspect including structural engineering, damp proofing, plumbing, electrical work, and final decorative finishes. Backed by the Wykamol Group, we utilise advanced cavity drainage membrane systems to address dampness and flooding risks. We prioritise clear communication, transparent pricing, and minimal disruption, ensuring projects are completed on time and within budget.

Our portfolio includes converting spaces into home cinemas, gyms, guest accommodations, and self-contained flats. We handle planning permissions, building regulations, and all technical documentation to simplify the process for clients. Positive testimonials highlight our professional approach, attention to detail, and ability to transform challenging spaces into valuable assets. Our local expertise in Altrincham and surrounding areas ensures clients receive practical, durable solutions tailored to modern living needs.
Services
Basement conversions Cellar tanking Damp proofing Plumbing installations Electrical work
Highlights and features
  • We are approved contractors for the Wykamol Group for damp proofing and cellar tanking.
  • Our team oversees projects from initial survey to final completion.
  • We guarantee transparent pricing with no hidden extras.
  • We have over a decade of experience in basement and cellar conversions.
  • Our local expertise ensures tailored solutions for Altrincham and surrounding areas.
Associations and certifications
  • Wykamol Group
What people say
Highly professional team Completed on time No hidden extras Excellent communication Transformed space into asset
Services
Basement conversions
We convert basements into functional living areas like home cinemas, gyms, and guest accommodations. Our process includes structural engineering, damp proofing, and full interior finishes. Clients benefit from tailored designs that maximise property value while maintaining compliance with building regulations.
Cellar tanking
Our Wykamol-approved cellar tanking systems use cavity drainage membranes to prevent dampness and flooding. This method creates an air gap that channels water away, ensuring long-term protection. Ideal for properties in high-water-table areas or with existing damp issues.
Damp proofing
We install advanced damp proofing solutions to protect basements from moisture ingress. Using Wykamol's cavity drainage systems, we address both surface dampness and severe water conditions. This ensures a dry, habitable environment suitable for residential use.
Plumbing installations
We handle all plumbing aspects including water supply, drainage, and underpinning-related pipe replacements. Our work ensures functional, code-compliant systems in converted spaces. Clients receive durable solutions with minimal disruption to existing structures.
Electrical work
Our electrical installations meet safety standards for converted basements. Services include lighting, power sockets, and integration with existing home systems. We ensure safe, efficient wiring tailored to the specific needs of underground living spaces.
Questions
What types of basement conversions do you specialise in?
We specialise in residential conversions including home cinemas, gyms, guest accommodations, and self-contained flats.
Do you handle planning permissions and building regulations?
Yes, we manage all aspects including planning applications, structural calculations, and compliance with building regulations.
Which areas do you serve?
We primarily serve Altrincham, Hale, and Wilmslow, with projects across Cheshire.
How do you address dampness in basements?
We use Wykamol-approved cavity drainage membranes to effectively manage dampness and prevent flooding.
Can you incorporate existing design preferences into conversions?
Yes, we work closely with clients to integrate personal design choices throughout the conversion process.