Hampshire · England
Setley Window Mastic
Our applicators work in Setley on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Draughty joints inside around the window
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
Different surfaces, different methods
Patio & French doors
Door frames take knocks and movement every time the doors are used. The sealant must cope with it.
Composite doors
An exposed front door gets wind-driven rain. We pay most attention there.
Window mastic in Setley
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. If you’re dealing with cold air getting in at the frame edge and hard, cracked sealant around windows, we can help.
Outdoor sealant needs dry, clean surfaces, so work on frames around Setley is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Setley (SO42)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
If you manage several properties in or around Setley, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.
Setley: your questions answered
Is Setley within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I let a flat near Brockenhurst station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
What does window mastic cost?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or drop us an email and let us know what needs doing and where.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can new sealant go over the old?
No. We remove every bit of old sealant first.
Do you guarantee window mastic?
Yes. Every job comes with our 12-month guarantee, and we are fully insured.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Aftercare tips
After the cure time, these simple habits help:
- Wash the frames with mild soapy water
- Don’t use solvent cleaners on the joint
- Air rooms to keep condensation down around windows
- Walk round the house once a year and look at the joints
Most silicone sealants will not take paint, so if you are planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. A new joint closes it up.
When to call us in Setley
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, and over the years it loses its give, cracks and comes away.
Signs it’s time to call us include:
- Mastic that is falling out in pieces
- Draughty joints inside around the window
- Cracked or shrunken mastic around the frame
- Cracked sealant at the sill ends
For landlords with property near Brockenhurst station, renewing tired window mastic between tenants heads off draught and damp complaints.
What to look for in a quote
- Is VAT in the price?
- What the cure time is
- Who turns up on the day
- Is the old sealant removed completely?
Places near Setley
More services for Setley
When something else is needed
We’ll always be straight with you, so here’s what new sealant will not do:
- Broken hinges, locks or handles
- Penetrating damp from a failed cavity tray or render
- Condensation trapped between the panes
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- uPVC windows
- Timber windows & doors
- Window sills
- Patio & French doors
- Composite doors
- Aluminium frames
What window mastic looks like in Setley
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Brockenhurst Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around Church of St Nicholas, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Setley is about 4 miles north of Lymington, in Hampshire. Every kind of property in Setley is covered for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Our area takes in 683 places across Hampshire, from the larger towns to small villages. Our Southampton page covers work nearby.
We work across the SO42 postcode area for window mastic. Local streets include Tilebarn Lane and Lymington Road, and we cover them all. If you’re just outside Setley, we cover Brockenhurst (1 mile north), South Weirs (1 mile west), Balmerlawn (1 mile north), Lyndhurst (5 miles north) and Emery Down (5 miles north). Larger places within reach include Eastleigh (15 miles north-east), Totton (8 miles north), Chandler's Ford (15 miles north-east), Hedge End (14 miles north-east), Lymington (4 miles south) and Romsey (13 miles north).
Around Setley
Typical jobs here are in homes near Foresters Arms, among other places. For rail, the closest station is Brockenhurst station, roughly 0.6 miles north of the centre. Nearby you will also find St Barbe Museum and Art Gallery (3.6 miles south) and Lymington New Forest Hospital (2.9 miles south-east).
Leave it or put it right?
A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It peels before long, and water still gets in behind. The old mastic has to come out. Older cottages and farmhouses around Setley can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and give you a clear price before any work starts.
Why choose Mr Mastic in Setley
- Over 20 years’ experience
- We never seal over old sealant
- An ARBOMaster approved applicator
- A 12-month guarantee on all work
Read our cost guide and our reviews.
What we do, step by step
You don’t need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes most of a day for a typical house, less for a few frames for a typical job. In a small place like Setley, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any leaks or damp you’ve noticed
- Mention if the joints have been sealed before
Getting a quote
We quote each job on its own. Simply phone 0345 464 0079 or email us and describe the job, and pictures are welcome.
