Roofline Advice
Roofline Advice for South Wales Homes — Expert Fascia, Soffit & Gutter Guidance from Mac Roofline
Your roofline protects your home from the elements — keeping rainwater out, stopping rot from spreading, and keeping your property looking sharp.
Yet across South Wales, we regularly see roofline suffering because the original timber has rotted or been poorly “capped over.”
Roofline Services
At Mac Roofline, we’ve been trusted by homeowners in Caerphilly, Cardiff, Newport, Bridgend and beyond for almost 30 years. We specialise solely in uPVC fascias, soffits, gutters and cladding, providing reliable installations that last for decades — not quick fixes that hide problems.
This guide explains why your roofline matters, what can go wrong, and how to ensure it’s done right the first time.
Why Your Roofline Matters
Your roofline — the fascia, soffit and gutter system — forms a weather-tight seal between your roof and your walls. It channels thousands of litres of rainwater safely away from your home every year.
When old wooden fascia boards soften or crack, moisture gets trapped behind them. This can lead to damp loft spaces, rotting rafter ends and peeling paintwork. Add the constant Welsh rain, and even minor cracks become major leaks.
That’s why proper replacement, not cosmetic covering, is the key to long-term protection.
Why Capping Over Old Fascia Boards Is a Costly Mistake
You’ve probably heard it before: “We’ll just cover your existing wooden fascia boards with new plastic capping boards — it’s quick, clean, and cheap.”
Unfortunately, that approach is one of the biggest long-term mistakes homeowners make.
This is a huge red flag- as any reputable roofline installer would never suggest this. What it does suggest is that the installer doesn’t understand the workings of a roof and is not experienced in roofline installation, done the right way.
It is certainly easier for them, and the materials involved are significantly cheaper.
However, we find that the prices being charged for this type of work are actually not much cheaper, and in some cases, we have even seen our customers being quoted more than we would charge for a proper full replacement.
At Mac Roofline, we’ve opened up hundreds of “capped” roofline across South Wales and found the same issue every time — rotting timber hidden behind shiny plastic.
Here’s what actually happens:
Trapped Moisture
The old timber can’t dry once sealed in plastic. Moisture becomes trapped, causing the wood to decay faster than ever. Wood is a natural material that contains moisture and needs to breathe- so even “good” wood will rot if it’s covered in Upvc
as its natural moisture will be trapped underneath.
Weak Gutter Fixings
Fascia boards support the guttering. Once the hidden wood softens, the brackets loosen, and gutters sag or leak in heavy rain.
Hidden Structural Damage
From the street, it might look neat, but underneath, it’s failing. By the time you notice, the rafter ends may already be damaged.
Expensive Future Repairs
When the decay spreads, the only fix is to strip everything off and start again — meaning you pay twice, costing double what a proper replacement would have in the first place.
Worthless Guarantees
Many “cap-over” installers offer short warranties- or none at all. Once the timber fails, you’re left footing the bill.
That’s why we always remove old fascia and soffit boards completely, inspect and treat the rafter feet, and install new uPVC boards that are structurally secure and are a “replacement” thickness size.
It’s the only method that genuinely protects your home from rot and damp — and it’s why Mac Roofline has built a reputation for quality across Caerphilly, Cardiff, Newport and the wider South Wales region.
Our Professional Roofline Replacement Process
Every installation follows a meticulous step-by-step system perfected through years of local experience:
- Full removal of all old timber fascia and soffit boards
- Inspection and repair of rafter feet where needed
- Installation of new uPVC fascia and soffit boards in your chosen colour (white, black ash, anthracite grey, light oak or rosewood, etc.)
- Fitting of eaves protectors to help guide rainwater into the gutters for long-term performance
- Correct alignment and installation of gutters and downpipes for efficient water control
- Finishing touches – proper trims along the wall edge- not just silicone, which breaks down and traps dirt- aligned joints and polished surfaces
Why Homeowners Across South Wales Choose Mac Roofline
We’re not a general builder; we’re roofline specialists. That’s all we do — and we do it to the highest standard.
- Almost 30 years of experience working on South Wales homes
- Free inspections and honest, no-obligation advice
- Fully guaranteed installations using trusted brands like Freefoam.
- 5-star reputation built on local reviews and repeat customers
- Expert fitters trained in modern uPVC systems
Common Roofline Problems in South Wales
Typical issues we find during inspections include:
- Rotten fascia boards hidden behind cap-over systems
- Sagging or leaking gutters from weak fixings
- Cracked joints and peeling paintwork on soffits
- Damp ceilings or staining from overflowing gutters
Every one of these problems can be permanently solved with a complete uPVC roofline replacement by Mac Roofline.
Benefits of Upgrading to a uPVC Roofline
- 100 % rot-proof and weather-resistant
- Low maintenance – never needs painting
- Improved ventilation at the roof edge
- Enhanced kerb appeal and property value
- Choice of colours and finishes to match your home
Home improvements
Our installations across Caerphilly, Newport, Bridgend and Cardiff stand up to years of harsh Welsh weather — while keeping your home looking pristine.
Frequently Asked Questions
How long does a roofline replacement take?
Most installations are completed within one to four days depending on property size.
Do you remove all old materials?
Yes. We remove every piece of rotten timber before installing new uPVC boards — no overlays, no shortcuts, and we provide a free quote for our service . We carry a waste carriers licence and all rubbish is safely and legally taken to a registered recycling centre.
Which areas do you cover?
We work throughout South Wales, including Caerphilly, Newport, Cardiff, Cwmbran, Bridgend, Chepstow, Barry, Risca and surrounding towns.
What colours and styles are available?
Choose from white, black ash, anthracite grey, light oak and rosewood to name but a few, all from a leading uPVC supplier.
Are your installations guaranteed?
Yes — all our roofline systems include both product and workmanship guarantees.
Book Your Free Roofline Inspection
If you’re noticing leaks, flaking paint, or sagging gutters, now’s the time to act.
Our experts will inspect your roofline, show you clear photos of any damage, and give straightforward advice — no sales pressure, just professional honesty.
Mac Roofline — South Wales’ trusted name for expert fascia, soffit and gutter replacement.
