Basement Conversions in Cheltenham

Create stunning new living spaces below ground level with expertly designed basement remodelling services from Mint Builders, proudly serving Cheltenham, Cirencester and the surrounding areas.

Unlock the Full Potential of Your Gloucester Home with a Basement Conversion

At Mint Builders, we deliver professional basement conversions across Cheltenham, Cirencester and the surrounding areas, helping homeowners make the most of the space beneath their feet. A well-executed basement conversion offers more than just extra room; it’s a smart, value-adding solution that enhances everyday living without altering your home’s footprint.

Whether you envision an inviting guest suite, a bespoke cinema room, a quiet home office, or a multi-purpose gym, our skilled builders are here to bring your ideas to life. We understand the technical challenges involved in basement renovations and have the experience, knowledge, and craftsmanship to overcome them safely and stylishly.

Every project is carefully designed around your property and lifestyle. We consider structural integrity, waterproofing, ventilation, and layout from the start, ensuring your new basement space is functional, comfortable, and finished to the highest standard.

And that’s not all. Our house renovations continue upwards and outwards with a range of loft conversions and house extensions – whatever it takes to create the perfect home for you.

Basement Renovations: What to Expect

Initial Planning and Design
Waterproofing and Insulation
Structural Alterations
Utility Installation
Interior Finishes and Final Touches

A cozy living room featuring a beige sectional sofa with various cushions, a wooden coffee table with candles and potted plants, two framed nature photographs on the wall, a floor lamp, and a well-organized bookshelf filled with books and decor items.

Planning and Design

We begin with a thorough inspection of your existing basement space, including assessing structural condition, ceiling height, access, and moisture levels. From here, we’ll produce detailed plans for layout, lighting, electrics and plumbing. Our team can work with your architect or our trusted design partners, and we’ll handle the relevant permissions and building control processes required for basement conversions in Cheltenham and Cirencester.

A modern and stylish basement game room with dim lighting. The space features a foosball table, a pinball machine, comfortable seating including armchairs and a sofa, and a bar area with stools. Shelves filled with bottles adorn the walls, and abstract art decorates the room.

Waterproofing and Insulation

Damp is a major concern in basements, so waterproofing is a priority. We use proven techniques like cavity drain systems, waterproof membranes, sump pumps and perimeter drainage. Combined with high-grade insulation, the space stays dry, energy-efficient and comfortable year-round, perfect for long-term use as a living space.

A modern basement with light wood flooring, a staircase to the left, a kitchen area to the right featuring a white countertop with two black bar stools, pendant lights, stainless steel appliances, and a potted plant. The space is well-lit with recessed lighting.

Structural Alterations

If your basement has limited headroom, we can lower the floor and underpin existing walls to create a more usable space. Where structural beams or reinforcements are needed, we install them with minimal disruption. Our builders also add access points, natural light solutions such as light wells or windows, and emergency exits when required to comply with building regulations.

A brightly lit playroom features a colorful circular rug, shelves with organized toys and books, and playful wall art. A staircase with white railings leads to an upper level. Soft round cushions and various toys are neatly arranged around the room.

Utility Installation

This stage includes electrical wiring, plumbing, central heating, ventilation systems and data cabling. Future-proofing is key, so we always recommend installing more sockets, lighting options and connection points than initially planned. This allows your basement space to evolve over time.

A cozy basement room with wooden floors, a patterned rug, and a grey couch adorned with cushions and a throw. The walls feature shelves and storage boxes. A staircase leads to the upper level. Warm lighting creates a welcoming ambiance.

Interior Finishes and Final Touches

We use high-quality, moisture-resistant materials to finish your basement walls, ceilings and floors. Flooring options such as vinyl, engineered wood or porcelain tiles work well in these environments. We complete every build with bespoke cabinetry, fitted storage, modern sanitaryware (if applicable), and a full professional decoration service.

The Benefits of Basement Remodelling

A custom basement renovation from Mint Builders offers multiple long-term benefits:

Increases property value by up to 30%
Creates new living spaces without extending outward
Cooler in summer and warmer in winter
Ideal for offices, home gyms, guest suites
Versatile and easily adapted to future needs
Can generate rental income (e.g. Airbnb)

Compared to traditional extensions or loft conversions, basement conversions offer a discreet way to expand your home with minimal external disruption. A basement remodel could be your next smart investment if you’ve already upgraded your loft space. (Explore our Loft Conversions page for more inspiration.)

Do I need planning permission for a basement conversion?

Most basement conversions fall under permitted development, particularly if you’re converting an existing space and not making structural changes to the exterior. However, listed properties or major alterations may require planning consent.

Can you convert the basement in a period property?

Yes. We have extensive experience working with period homes in Cheltenham, Cirencester and the surrounding areas. We’ll ensure all work is sympathetic to the building’s character while meeting modern safety and insulation standards.

Will my home be disrupted during the project?

There will be some disruption, especially during excavation or structural stages, but we always work cleanly, safely and with respect for your home. You’ll be kept informed throughout the project, and we’ll aim to minimise inconvenience as much as possible.

What’s the difference between a basement conversion and excavation?

A basement conversion typically transforms an existing space, while excavation involves creating a new basement or extending the existing footprint. We handle both, but conversions are usually faster and more cost-effective.

Start Your Basement Conversion Today

At Mint Builders, we deliver expertly crafted basement conversions in Cheltenham, Cirencester and surrounding areas. With a reputation for high-end workmanship, detailed planning, and a personal approach, we turn underused spaces into warm, welcoming and highly functional areas of your home.

If you’ve already explored your options for extensions or house renovations, a basement conversion could be the next step to transform your property. Call us on 01242 279739 to arrange your no-obligation consultation.