Roofing & BuildingServices in Cardiff
From a slipped slate in Roath to a full resin drive in Llanishen: a local Cardiff team, a fixed price in writing, and a 10-year workmanship guarantee on the finished job.
Based in St Mellons, Cardiff · Trading since 2019 · 10-year workmanship guarantee
15+ years' experience
Trading as MB Construction since 2019.
10-year guarantee
Workmanship guaranteed on every completed job.
Fully insured
Public and employer's liability cover in place.
24/7 emergency roofing
Live leaks and storm damage answered any hour.
Fixed-price quotes
Free, written, and never a day rate.
Your Local Team in Cardiff
MB Construction works in Cardiff every week because we are from Cardiff. Our yard is at Crumlin Drive in St Mellons, which puts the whole city inside a short run, Splott, Roath, Cathays, Canton, Grangetown, Llanishen, Whitchurch, Rhiwbina, Llanrumney and Pentwyn are all part of our normal working week rather than jobs we travel out to.
That matters more than it sounds. A roofer who works one city knows what the housing stock throws up: the Victorian terraces with original slate and lime mortar, the interwar semis with clay tiles and tired fascias, the sixties and seventies estates with shallow-pitch roofs and flat-roof extensions, and the newer developments where the render and the drive are the first things to look tired.
We cover the full range of outside and inside work on a house: new roofs and roof repairs, rendering and external wall insulation, block paving and resin driveways, patios, fencing, jet washing, plus kitchens, bathrooms, painting and decorating. That means one team, one point of contact and one fixed price, instead of chasing four different trades around the city.
Everything is quoted free and in writing, priced as a fixed job rather than a day rate, and backed by a 10-year workmanship guarantee. We hold public liability and employer's liability insurance, and for emergency roof repairs we are contactable 24 hours a day.
- Where we work from
- Crumlin Drive, St Mellons, Cardiff. Cardiff is part of our regular working area, alongside St Mellons, Llanrumney, Rumney, Pontprennau, Penarth, Newport.
- Victorian and Edwardian terraces
- Roath, Cathays, Canton, Grangetown and Splott are full of them. Natural slate, shared valleys, parapet walls and rear back-additions; all of which need repair methods that respect the original build rather than smothering it in mastic.
- Interwar and post-war semis
- Llanishen, Whitchurch, Rhiwbina and Heath semis typically run concrete or clay tiles with timber fascias and soffits. When the roofline goes, water runs down the wall and the render and brickwork suffer next.
- Estate housing and extensions
- Llanrumney, Pentwyn, Ely and Caerau properties often carry flat-roof extensions, porches and dormers. These are the details that fail first and the ones most patch repairs miss.
- Newer developments
- Around the Bay, Pontprennau and the northern edges the roofs are young but the driveways, rendered elevations and boundary fencing are usually the first jobs a homeowner wants sorted.
What We Get Called Out For Most in Cardiff
Leaks after a wet spell
Cardiff gets long, driving rain rather than dramatic downpours, which finds slow faults: a lifted flashing, a blocked valley, a hairline crack in a flat roof. Those are the calls we take most.
Front gardens turned into parking
Street parking pressure across the inner suburbs means resin and block paved drives are one of our busiest jobs in the city.
Tired render and cold solid walls
Older Cardiff housing is frequently solid wall. Render repairs and EWI both come up constantly, one for looks and weatherproofing, the other for warmth.
Green, slippery hard landscaping
Shaded city gardens and north-facing paths go green quickly. Jet washing, repointing and patio work keep them safe and usable.
Services We Offer in Cardiff
Every service below is available across Cardiff, quoted as a fixed price and covered by the same 10-year workmanship guarantee.
New Roofs in Cardiff
A full replacement roof with new membrane, battens and flashings, so the loft stays dry and you stop paying for repeat patch repairs.
More on New Roofs →
Roof Repair in Cardiff
Slipped slates, cracked flashing, failed valleys and storm damage put right quickly, with 24/7 availability for emergency leaks.
More on Roof Repair →
Block Paving in Cardiff
A hard-wearing block drive laid on a proper sub-base, so it carries vehicles for years instead of rutting and sinking.
More on Block Paving →
Resin Driveways in Cardiff
A smooth, weed-resistant resin-bound surface that drains rather than pooling, and wipes clean with a jet wash.
More on Resin Driveways →
Patios in Cardiff
A level, well-drained patio that stays usable in Welsh weather and turns an unused corner of the garden into somewhere you sit.
More on Patios →
Rendering in Cardiff
Fresh render that seals a porous or cracked wall against driving rain and lifts the whole front of the property.
More on Rendering →
EWI Rendering in Cardiff
External wall insulation with a rendered finish: warmer rooms, lower heating bills and a solid wall that stops feeling cold to the touch.
More on EWI Rendering →
Painting & Decorating in Cardiff
Walls, ceilings, woodwork and papering finished neatly inside or out, with the filling and sanding done before a brush is lifted.
More on Painting & Decorating →
Bathroom Fitting in Cardiff
A complete bathroom installed and sealed correctly, so trays, tiling and joints stay watertight instead of leaking into the floor below.
More on Bathroom Fitting →
Kitchen Fitting in Cardiff
Units fitted level and square to walls that are rarely either, with worktops, appliances and services connected and finished.
More on Kitchen Fitting →Fencing in Cardiff
New posts, panels and gates set properly so the boundary survives the next storm off the Channel.
More on Fencing →
Jet Washing in Cardiff
Drives, patios and paths cleaned back to their original colour, with the moss and algae lifted rather than smeared.
More on Jet Washing →Why Homeowners in Cardiff Choose Us
No inflated claims, just what we can actually stand behind.
A Cardiff base, not a Cardiff advert
We are at Crumlin Drive, St Mellons. You are dealing with a local team that can come back if something needs looking at, not a call centre routing work to whoever is nearest.
Experience with Cardiff's housing stock
Over 15 years of trade experience on the terraces, semis and estates this city is built from: the same details keep repeating, and we know which ones fail.
Fixed prices, never a day rate
Free, no-obligation quote, written price, and that price holds. It is the single thing homeowners tell us they were most worried about before calling.
24/7 for emergency roof repairs
Storm damage and live leaks do not keep office hours, and neither does the phone for roofing emergencies.
Guaranteed and insured
A 10-year workmanship guarantee on completed work, plus public and employer's liability insurance you are welcome to see.
The Problems Cardiff Properties Actually Have
Building age, ground conditions and how exposed a property is all change what fails first, and what the right fix is.
Wind-driven rain off the Channel
Rain here arrives sideways as often as it falls straight down. It gets behind flashings, under slate laps and into cracked render in a way a still downpour never would, which is why we look at the weather side of a property first.
Ageing slate and nail fatigue
On Victorian terraces the slate often outlives the nails holding it. Slates start slipping one at a time and no amount of re-bedding the ridge fixes the underlying issue, at that point re-roofing is the honest answer.
Shared valleys and terrace boundaries
Terraced roofs share valleys and party walls, so a fault on one house shows up as a stain on next door's ceiling. Diagnosing this properly saves two households arguing about whose leak it is.
Flat-roof extensions past their life
A great many Cardiff kitchens sit under a flat roof laid decades ago. Felt hardens, splits at the upstands and lets water track along joists, the leak usually appears nowhere near the actual hole.
Clay soils and driveway movement
Skimp on the sub-base in this ground and a new drive ruts within a season. Depth of dig, compaction and edge restraint are where a driveway is won or lost.
How a Job in Cardiff Runs, Start to Finish
- 01
Your call or enquiry
Tell us what you need and where you are. For emergency roof problems we answer 24/7, so a leak at midnight does not have to wait for office hours.
- 02
Site visit and inspection
We come to the property, get up to the roof or onto the ground you want worked on, and look at the actual condition rather than guessing from a photo.
- 03
Fixed price in writing
You get a free, no-obligation quote setting out the work and the price. We never work to a day rate, so the figure you agree is the figure you pay.
- 04
The work, done properly
A team of five means jobs are staffed, started and finished rather than left half done while we disappear onto something else.
- 05
Check over and guarantee
We walk the finished job with you, clear the site, and back the work with a 10-year workmanship guarantee.
Nearby Areas We Cover
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Next Steps
We also cover Cardiff, Newport, St Mellons, Vale of Glamorgan, Caerphilly, Penarth and the surrounding South Wales area.
Cardiff, Your Questions Answered
Which parts of Cardiff do you cover?
All of it. Roath, Cathays, Canton, Grangetown, Splott, Llanishen, Whitchurch, Rhiwbina, Heath, Llanrumney, Pentwyn, Ely, Pontprennau, the Bay and everywhere in between. Being based in St Mellons keeps the whole city close.
Do you actually cover Cardiff?
Yes. Cardiff is part of our regular working area. We are based at Crumlin Drive in St Mellons, Cardiff, and work across Cardiff, Newport, the Vale of Glamorgan, Caerphilly and Penarth, so Cardiff is a normal short trip rather than a long-distance job we reluctantly take on.
Is the quote free in Cardiff?
Yes. Quotes and site visits in Cardiff are free and carry no obligation. We look at the job in person and put a fixed price in writing; there is no charge for coming out and no pressure to book.
How much does the work cost in Cardiff?
Price depends on the property and the scope, so we do not publish figures we could not stand behind. What we can promise is how it is priced: a fixed quote for the job, never a day rate, so the number does not climb while the work is underway.
Can you get to Cardiff in an emergency?
We are available 24 hours a day, 7 days a week for emergency roof repairs, including active leaks and storm damage. Call and we will tell you honestly when we can be with you rather than making a promise we cannot keep.
Is your work in Cardiff guaranteed?
Every job carries a 10-year workmanship guarantee: roofing, rendering and driveways alike. That guarantee is the same in Cardiff as it is anywhere else we work.
Are you insured?
Yes. We carry both public liability and employer's liability insurance, and we are happy to show you the documents before anyone sets foot on your property.
How experienced is the team?
MB Construction has been trading since 2019 and the trade experience behind it runs to more than 15 years. The team is five strong, so jobs are properly staffed from start to finish.
Will you tidy up afterwards in Cardiff?
Yes. Waste goes with us, the working area is cleared, and we walk the finished job with you before we leave.
Can you work on a Victorian terrace with original slate?
Yes, and it is some of our most common Cardiff work. Slate roofs need repairing as slate roofs, matched slates, sound flashings and proper valley work rather than sealant and hope.
Do you do full home improvements as well as roofing?
Yes. Alongside roofing we render, insulate, lay block and resin drives, build patios, fit fencing, jet wash, and fit kitchens and bathrooms with painting and decorating to finish.
Get a free fixed-price quote in Cardiff
Tell us the address and what is going wrong. We will come out, look at it properly and put a fixed price in writing: free, with no obligation.
- Free, no-obligation site visit and fixed price in writing
- 10-year workmanship guarantee on completed work
- Public liability & employer's liability insured