Hampshire · England
Window Mastic in Heckfield Heath
Window mastic in Heckfield Heath from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Water coming in at the bottom corners of a door
- Old mastic that has gone black or come away
- Draughts coming in around windows and doors
Window mastic in Heckfield Heath
The mastic around a window or door seals the gap between the frame and the wall. 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 are dealing with a bead that doesn’t match the frame and hard, cracked sealant around windows, we can help, on patio & French doors, window sills and composite doors alike.
In a village or hamlet like Heckfield Heath, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Whatever the size of the job, it’s backed by our one-year guarantee in Heckfield Heath and across Hampshire.
- Where
- Heckfield Heath (RG27, RG7)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

Different surfaces, different methods
Aluminium frames
Aluminium needs a sealant that bonds to coated metal, and acetoxy silicones aren’t used, as they can attack some metals. Neutral-cure sealant is the safe choice.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We will tell you which suits your home.
What affects the quote in Heckfield Heath
We do not publish a price list, because jobs vary so much. The quote depends on:
- Whether old sealant or filler has to be cut out
- Access and height
- How much there is to do
- Mould in or behind the old joints
Leaving a failed joint normally makes the job bigger, not smaller. If you’re unsure, ring 0345 464 0079 or email us for an honest opinion and a quote.
What to tell us for a quote
When you call or email, these details help:
- How we’d reach the joints
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- The type of property
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. In a small place like Heckfield Heath, access is normally 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.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- 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.
How to prepare
- Keep children and pets away from the work area
- Mention any tricky access
- Let us know about parking restrictions
Getting a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.
Advice
Leave it or put it right?
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. Where a wall is exposed, as many are in small places like Heckfield Heath, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why Heckfield Heath customers choose us
- We never seal over old sealant
- Approved under the ARBOMaster scheme
- You choose the colour before work begins
- Colour picked to suit the job
Looking after it afterwards
So the new joints stay in good condition:
- Do not use solvent cleaners on the joint
- Check the mastic once a year
- Ventilate rooms so frames don’t stay wet inside
- Keep paint and stain on wooden frames in good order
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
Frames and glazing around Heckfield Heath
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Stratfield Saye House (about 1.6 miles west) nearby, there’s older building stock in the area around Heckfield Heath as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
For landlords with property near Mortimer station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around Church of St Michael, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Heckfield Heath is about 4 miles north of Hook, in Hampshire. If you need window mastic in Heckfield Heath, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We’re based in Crawley and cover Hampshire. Heckfield Heath is one of 683 places in Hampshire where we work. Our Reading page covers work nearby, about 7 miles away.
Every address in RG27 and RG7 is covered for window mastic, from the main roads to the quietest streets. That includes homes and businesses on Church Lane and The Causeway. We also cover the places around Heckfield Heath: Heckfield (1 mile south), Riseley (1 mile north), Bramshill (1 mile east), Hound Green (1 mile south) and Hazeley (2 miles south-east). We also work in nearby towns such as Basingstoke (8 miles south-west), Farnborough (9 miles south-east), Fleet (7 miles south-east), Aldershot (11 miles south-east), Alton (14 miles south) and Yateley (5 miles east).
Local landmarks in Heckfield Heath
Locally, jobs take us to homes and businesses close to Wellington Country Park and New Inn and the streets around them. The nearest railway station is Mortimer station, about 3.8 miles north-west of the centre. Other landmarks nearby include Beaumys Castle (2.3 miles north-west) and West Green House Agricultural Museum (3.3 miles south). Open spaces near Heckfield Heath include The Marshes Local Nature Reserve.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Heckfield Heath: your questions answered
Do you work for landlords with property near Mortimer station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or email us with the details for a clear quote.
Do you cover smaller places like Heckfield Heath?
Yes. Heckfield Heath is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.
Can you reach windows above the ground floor?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.
Where do you work from?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
