Don’t let subsidence ruin your home
Subsidence is a serious issue that can affect homes in Bristol. It occurs when the ground beneath a property sinks, causing the building to move and potentially crack.

Why choose Core Loft Conversions?
Looking to expand your home? At Core Loft Conversions, we specialise in transforming your attic into a stunning, practical space with our expert loft conversion services.
Our skilled team, including architects and builders, works together to craft exceptional, tailored spaces that go beyond what you imagined!
Benefits of loft conversions
The options are limitless! Beyond enhancing your daily living, a Core Loft Conversion can boost your property’s value—studies suggest a well-executed conversion could increase your home’s worth by as much as 25%.
Make a smart investment in your home and your future with Core Loft Conversions.
Our loft conversion services
Dormer loft conversions: Perfect for terraced and semi-detached homes, dormer lofts provide additional headroom and floor space with a box-shaped design. Ideal for a master bedroom or home office.
Velux loft conversions: A cost-effective option that utilises your existing loft space, adding skylights to flood the area with natural light—great for minimalist designs.
L-shaped loft conversions: An excellent choice for properties with extensions, creating a spacious and versatile loft area.
Wrap-around conversions: Our largest option, offering maximum headroom and space, perfect for creating a fully self-contained suite.
The main causes of subsidence in Bristol homes
Several factors can lead to subsidence in Bristol:
Clay soil: Bristol sits on clay soil that shrinks and swells with changes in moisture levels.
Tree roots: Large trees near buildings can extract water from the soil, causing it to dry out and shrink.
Leaking pipes: Water from damaged pipes can wash away soil or cause it to soften.
Mining: Old mine shafts or tunnels can collapse, leading to ground instability.
Drought: Extended dry periods can cause soil to shrink, especially in clay-rich areas.
Signs and symptoms of subsidence
Spotting subsidence early can help prevent major damage. Look out for these signs:
Cracks in walls, especially those wider at the top
Gaps between walls and skirting boards
Doors and windows sticking or not closing properly
Sloping or uneven floors
Wallpaper rippling or tearing for no apparent reason
Local loft conversion experts you can trust
At Core Loft Conversions, we combine local knowledge with unmatched craftsmanship to deliver results that exceed expectations. We work closely with you at every stage, from design to completion, ensuring your loft conversion perfectly suits your needs and home’s architecture.
Years of experience
Loft conversions completed
Customer satisfaction
Sarah Thompson, Bristol
“The team at Core Loft Conversions transformed our dark and cluttered attic into a beautiful guest bedroom. Their attention to detail and professionalism were outstanding. They kept us informed throughout the process and completed the job within the promised timeframe. Highly recommended!”
James Carter, Manchester
“We chose Core Loft Conversions in Manchester for a Velux loft conversion, and we couldn’t be happier. The natural light flooding into the new space has completely changed the feel of our home. The team was friendly, efficient, and left the place spotless. A fantastic experience from start to finish!”
Emily Rogers, Edinburgh
“Our dormer loft conversion turned out even better than we imagined. The additional headroom and floor space are perfect for our growing family. The crew handled everything, including planning permissions, making the process stress-free. We’re thrilled with the results!”
Rachael B, Leeds
“We had a loft conversion done by Core Loft Conversions, and it’s been the best investment we made in our property. The new space is now a spacious home office, and the quality of workmanship is second to none. The team was punctual, polite, and completed the project on budget. Couldn’t recommend them more!”
Our loft conversion process
At Core Loft Conversions, our loft conversion process is very simple and transparent.

Survey & design
Ready to explore your loft conversion? Contact Core Loft Conversions to book a site survey at a time that suits you. We’ll give you a heads-up if anything unexpected pops up and we need to tweak the schedule.
Our expert surveyor will arrive, chat through your ideas and needs for your loft conversion, and assess your space. They’ll measure up, check what’s possible, and guide you through your options, pinning down the project scope for a tailored quote.
You’ll get a clear, written quote based on the survey, outlining everything we’ve discussed. This is an initial estimate—extra details might be needed for a final, fixed price (more on that next). Happy with it? Just say the word, and we’ll take it from there.

Drawings & quote
Ready to kick things off? Next, we’ll arrange a quick follow-up visit—about an hour—to gather detailed measurements for architectural drawings and an engineering report.
Afterwards, you’ll get draft drawings to review. Feel free to tweak them so they align perfectly with your loft conversion vision—we’re here to help every step of the way.
Once the drawings are spot-on, we’ll deliver a detailed, fixed-price quote for the full project. This final quote, tied to the agreed plans, gives you clarity and confidence on costs and scope.

Planning permission if required
Once you’ve greenlit the quote, we’ll handle any planning permission needed for your loft conversion—though some projects skip this step entirely! Our expertise makes this process smooth and stress-free.
If permission is required, it typically takes 6-8 weeks to sort. After that, we’ll lock in a start date for your build. We’re a busy crew, but we’ll slot your loft conversion in as soon as we can.

Construction and approvals
Before we start your loft conversion, we’ll sort Party Wall rules, order materials, and set up scaffolding a few days ahead if needed. We’ll also clear out the loft—furniture, old insulation, water tanks, you name it.
Most loft conversions barely disrupt your routine, unlike extensions. We’ll build the main structure, fit the staircase, and get pros in to wire electrics and plumb any bathroom bits or lighting.
In just a few weeks, your cracking new loft will come together—you’ll wonder how you coped without it! We’ll do a final walkthrough with you to ensure it’s spot-on, then you’re free to decorate and make it your own.
Frequently asked questions
Common questions asked from previous loft conversion clients.
Costs vary depending on the type of conversion, but we provide transparent quotes with no hidden fees.
Most loft conversions fall under permitted development. However, we’ll handle all the necessary permissions for you.
Projects typically take 6–8 weeks, depending on complexity.
In most cases, yes, a loft conversion can increase the value of a property. A professionally executed conversion typically boosts a properties market value by 10–20%. In certain areas, especially where space is at a premium, it may be even higher.
Frequently asked questions
Common questions asked from previous subsidence repair clients.
Cracks in walls are a key indicator of subsidence. Look for diagonal cracks wider at the top than bottom. Other signs include doors and windows sticking, sloping or uneven floors and wallpaper rippling at wall/ceiling joins.
The repair process starts with a structural engineer’s inspection. They’ll assess damage and recommend solutions. Common fixes include, underpinning foundations, repairing damaged walls and addressing any drainage issues.
Repair costs vary based on the extent of damage, size of property and location.
Timelines vary by repair method and damage extent. Resin injection can take just 1-2 days. Traditional underpinning often takes 4-8 weeks. Complex cases might need months of work. Your structural engineer can give a more precise estimate.
Get a free quote for a loft conversion to your home!
Make your space, bigger, better, and increase your property value with Core Loft Conversions.