Cellar & Garage Conversion
Turn Unused Space into Functional Living Areas
Unused cellars and garages offer huge potential for additional living space. Whether you’re looking for a home office, guest room, gym, or entertainment area, we specialize in fully insulated, high-quality conversions to maximize your home’s potential.
Our Cellar & Garage Conversion Services Include
✅ Basement Conversions – Convert your cellar into a fully functional living area with damp-proofing and insulation.
✅ Garage to Living Space Conversions – Transform your garage into a bedroom, office, or home gym.
✅ Storage & Utility Rooms – Create organized storage areas or functional utility spaces.
✅ Entertainment & Home Cinema Rooms – Enjoy a dedicated home entertainment area.




Why Choose Rotherham Builders
Your reliable partner for high-quality home extensions, renovations, and custom-built homes.
With over 22 years of experience in renovation, new builds, and domestic properties, we pride ourselves on delivering exceptional service. We always prioritize our customers’ needs on every project and understand the challenges of finding a reliable building company that shows up when promised.
Why Homeowners Trust Rotherham Builders?
- Fast and Accurate Quotes
- Unmatched Attention to Detail
- Clear and Open Communication
- Professional Guidance
- Friendly and Respectful Team
- Skilled and Reliable Professionals
Words from our Happy Clients
Jason and his team have just boarded and skimmed our hall, stairs and landing. The price was really good and we were surprised how quick he could fit us in. Jason came out twice to see us to make sure everything was right. Their work is fantastic and we were far more happy with the completed job. They were all very polite and professional, there wasn't hardly any mess everything was covered rightand I would recommend Jason to anyone wanting any plastering doing. We will definitely be giving Jason a call in the future. Thank you Jason and your team, you've done an awesome job.
Jason gave us a very good quote for an ivory monocouche render for the top half of our property which we accepted and him and his team commenced work after the roof had been renewed. The old render was removed very quickly and despite losing a bit of time for rain they were soon back up to speed with a couple of late finishes. The workmanship is first class and we are very pleased with the end result. Would definitely recommend Jason and his team to anyone.Many thanks.
Jason and his team have just boarded and skimmed our hall, stairs and landing. The price was really good and we were surprised how quick he could fit us in. Jason came out twice to see us to make sure everything was right. Their work is fantastic and we were far more happy with the completed job. They were all very polite and professional, there wasn't hardly any mess everything was covered rightand I would recommend Jason to anyone wanting any plastering doing. We will definitely be giving Jason a call in the future. Thank you Jason and your team, you've done an awesome job.
Our Latest News & Blog Post
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