West Sussex · England

Lidsey Window Mastic

Window mastic for Lidsey, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Mastic that has split away from the wall
  • Cracked sealant at the sill ends
  • Old mastic that has gone black or come away

Window mastic near Lidsey

Window mastic in Lidsey, done properly

The new joint doesn’t have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. Common call-outs are for old mastic that has gone black or come away and rain getting in at the frame or under the sill, on patio & French doors, window sills and uPVC windows.

In a village or hamlet like Lidsey, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.

Our work is backed for twelve months, in Lidsey and everywhere else we cover.

Applicator reaching up to seal an external door frame on a sunny day
Where
Lidsey (PO22)
Wider area
West Sussex
Cover
A year, on every job
Price
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026

Quotes for window mastic in Lidsey

We quote each job individually. These are the things that affect it:

  • How much there is to do
  • When we can work, for business premises
  • The number of rooms or windows
  • Whether old sealant or filler has to be cut out

Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

What we need to know

When you call or email, these details help:

  • Photos by email, if that is easy
  • How many joints, rooms or windows are involved
  • Any previous sealing or DIY work
  • What’s wrong with the joints now

For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work and give you a clear price.

Work for landlords, hotels and businesses

We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for.

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.

How the visit works

At the end, we look at the finished work together. The visit itself normally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the amount of work. In a small place like Lidsey, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First, we go round the frames with you and agree the list.
  2. The old mastic is cut out and scraped back to clean surfaces.
  3. Where the gap is deep, backing rod goes in first.
  4. A flexible exterior sealant is applied in a colour to suit the frame.
  5. We tool each bead neatly and check every joint is closed.

How to prepare

  • For indoor joints, keep the area dry beforehand if you can
  • Clear the area around the work
  • Let us know about parking restrictions

Get a quote

There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To get started, ring 0345 464 0079 or email us.

Get a quick quote

Advice

Different surfaces, different methods

Patio & French doors

Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that.

Aluminium frames

Aluminium moves with heat, and the frames are often slimmer than uPVC. A tidy bead in anthracite grey, black or a matching colour suits the frame.

Questions from Lidsey

Does living near the coast affect window mastic in Lidsey?

Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.

Is Lidsey within the area you cover?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

Where are you based?

We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Can resealing stop a draught around my window?

If the draught is coming in around the frame, yes. If it’s coming through the window seals, we will tell you.

Do you work for hotels and businesses?

Yes. We’ve worked for hotels, offices and other businesses, and we’re fully insured.

Are you fully insured?

Yes. We are fully insured, with over 20 years’ experience in sealant work.

Should I try DIY first?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.

Do the sealants smell?

It depends on the product. Some smell for a while, some hardly at all.

DIY sealant or a professional job?

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

A DIY attempt does not rule out a professional job. We remove it and do the joint properly.

Common problems we fix in Lidsey

Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and the wood moves with damp as well as heat.

If you can see any of these, it’s time to have the joints looked at:

  • Cracked or shrunken mastic around the frame
  • A bead that does not match the frame
  • Mastic that’s falling out in pieces
  • Cracked sealant at the sill ends

Homes close to The Parish Church of St Mary include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Before you book anyone

  • How the colour is chosen
  • How the surfaces are prepared before sealing
  • What product goes in the joint
  • How much experience the applicator has

Choosing a sealant specialist

Aftercare tips

So the new joints stay in good condition:

  • Clean frames with a soft cloth and soapy water
  • Repaint timber before it’s bare
  • Avoid harsh chemicals near the mastic
  • Don’t paint over the silicone

Try not to touch the new joint while it cures, following the cure time we give you. Do not point a pressure washer at the joints.

Leaks generally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.

What window mastic looks like in Lidsey

Lidsey is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around window and door frames, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Managing a site like Aldingbourne Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Barnham station, renewing tired window mastic between tenants heads off draught and damp complaints.

Lidsey is about 2 miles north-east of Bognor Regis, in West Sussex. Every kind of property in Lidsey is covered for window mastic, old or new, large or small. Every job comes with our one-year guarantee. Our West Sussex coverage runs to 371 places, Lidsey among them. Portsmouth is on our list too, about 18 miles from Lidsey.

Here we cover the PO22 postcode area for window mastic. Local streets include Lidsey Road and Sack Lane, and we cover them all. We also cover Shripney (1 mile south-west), Westergate (1 mile north), Eastergate (1 mile north), West Barnham (1 mile north-east) and Barnham (1 mile north-east). We also work in nearby towns such as Worthing (12 miles east), Chichester (5 miles west), Selsey (8 miles south-west), Littlehampton (6 miles east), Lancing (15 miles east) and Emsworth (12 miles west).

Around Lidsey

In Lidsey, that means homes and buildings near St Philip Howard Catholic High School and The Brooks Local Nature Reserve, among other places. For rail, the closest station is Barnham station, roughly 1.3 miles north-east. Other landmarks nearby include Tote Copse Castle (1.6 miles north-west) and Bognor Regis Museum (2.6 miles south).

Map of Lidsey © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job