UPVC or aluminium — which is better?

UPVC insulates well and suits most homes; aluminium suits large openings and slimmer frames.

Do double-glazed windows reduce noise?

Yes, significantly, especially combined with good sealing.

Can windows be replaced without damaging walls?

Some reveal repair is usually needed, which we include.

Carpentry & Windows

UPVC and aluminium windows that seal out noise, dust and rain

Sliding and casement windows with proper sealing, drainage and toughened or double glass options.

Old wooden or steel windows let in dust, noise and rain, and can be hard to open and close.

Modern UPVC and aluminium windows seal far better, but only if installed right. RennovEN fixes frames squarely, seals the joint to the wall and keeps drainage paths clear.

Signs you need this

Dust and noise entering through windows
Rain seeping around frames
Rusted or warped old windows
Hard-to-operate shutters

The RennovEN promise

10-year warranty on all works
Itemised pricing, approved before work begins
One accountable team across every trade
Residential specialists — homes only

Book free inspection

Diagnosis

Why it happens

Old frames

Warped wood and rusted steel no longer seal.

Poor installation

Gaps around new frames leak if not sealed.

Blocked drainage

Sliding tracks need weep holes to drain water.

Our method

How RennovEN does it

1
Measure
Precise measurement of openings.
2
Specify
Frame system and glass choice.
3
Install
Remove old, fix new frames square.
4
Seal
Seal joints, test operation and drainage.

What’s included

Opening measurement
Frame and glass specification
Old window removal
Installation and sealing
Finishing of reveals

What affects the cost

Number and size of windows
UPVC or aluminium system
Glass type
Mesh and accessories

Every home is different, so we don’t publish rate cards. After a free inspection you get an itemised estimate, and you approve every line before work begins.

Get my itemised estimate

10-year warranty

Window installation is covered for 10 years against leaks and fixing defects due to our workmanship. Profiles and glass carry the manufacturer warranty.

How our warranty works

FAQ