Garage & Basement Conversions

Transform Unused Spaces into Stylish, Livable Rooms

What We Do

At Quantas Construction Ltd, we turn neglected garages and dark, damp basements into beautiful, usable spaces that add real value to your home. Whether you’re looking to create a home office, gym, guest room, utility area, or even a self-contained annexe, a well-planned conversion is a smart and cost-effective way to expand your living space. 

Based in the Swansea Valley, we carry out garage and basement conversions across South and Mid Wales with full project management and expert craftsmanship.

Why Convert a Garage or Basement?

Barn conversions offer the perfect blend of traditional charm and modern living. They provide:

Adds valuable extra space without altering the home's footprint

Increases property value and appeal

Avoids the cost and stress of moving home

Makes better use of space that’s often underutilised

Offers versatile room options for growing families or lifestyle changes

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Garage Conversion Services

We convert all types of garages, including:

Common uses include:

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Basement Conversion Services

Basements are full of untapped potential. We offer:

We ensure all work complies with building regulations, making your new space safe, warm, and inviting.

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Why Choose Quantas Construction?

Our team includes all the required trades and specialists, so there’s no need to hire multiple contractors. We keep the project running smoothly and on schedule.

Areas We Cover

We proudly serve a wide area including:

Let’s Maximise Your Space

Ready to make the most of your garage or basement? Contact Quantas Construction Ltd today for a free consultation and tailored quote.