Hampshire · England
Window & door mastic in South Harewood, Hampshire
Problem with your window and door frames in South Harewood? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Gaps left after new windows were fitted
- Old mastic that has gone black or come away
- Mastic that has split away from the wall
Common problems we fix in South Harewood
Every frame moves through the day. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. If the sealant cannot stretch, it splits.
It’s worth asking for a quote if you see:
- Mastic that has split away from the wall
- Old mastic that has gone black or come away
- Cold air getting in at the frame edge
- Rain getting in at the frame or under the sill
Managing a site like Wherwell Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Before booking anyone
- What happens if they find a problem under the old sealant
- What the quote includes, VAT included or not
- Whether you can choose the colour
- How the surfaces are prepared before sealing
Window mastic for homes and businesses in South Harewood
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 draughts coming in around windows and doors and rain getting in at the frame or under the sill, we can help, whatever the surface.
Around South Harewood, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All of our work is guaranteed for twelve months.
- Location
- South Harewood (SP11)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in South Harewood
Do you cover smaller places like South Harewood?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Andover station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We check where the draught is before we start.
When is the sealant fully cured?
Cure times vary by product and the temperature. Before we leave, we’ll tell you the cure time.
How much does window mastic cost in South Harewood?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or send us an email and tell us what needs doing and where.
Is the new sealant paintable?
Most silicone cannot be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
What happens if it’s left?
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Older cottages and farmhouses around South Harewood can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we will talk you through it.
Why South Harewood clients choose us
- Tidy, careful work
- Anti-fungal silicone where joints get wet
- We agree the colour with you first
- Any old sealant cut out fully, not covered over
Take a look at our cost guide and customer reviews.
Different surfaces, different methods
Composite doors
An exposed front door gets wind-driven rain. Those corners get the most care.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We will point out any rot we find, as that’s a job for a joiner.
Nearby places to South Harewood
More services for South Harewood
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Broken hinges, locks or handles
- Damp problems in the wall away from the window
- Soft or decayed wood in the frame
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think before you book.
What we seal
- Composite doors
- uPVC windows
- Timber windows & doors
- Patio & French doors
- Aluminium frames
- Window sills
Windows and doors in South Harewood
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Andover station, renewing tired window mastic between tenants heads off draught and damp complaints.
South Harewood is about 4 miles south-east of Andover, in Hampshire. Homes, rented property, offices and hotels in South Harewood is covered for window mastic. Every job comes with our 12-month guarantee. We cover 683 towns and villages across Hampshire, large and small. Southampton is on our list too, about 18 miles from South Harewood.
Work in SP11 is quoted and booked the same way as anywhere else. We also cover the places around South Harewood: Wherwell (1 mile south-west), Wherwell Wood (2 miles west), Chilbolton (2 miles south-west), Cottonworth (2 miles south-west) and Fullerton (3 miles south-west). Further out, we also cover Basingstoke (15 miles north-east), Winchester (9 miles south-east), Eastleigh (15 miles south), Andover (4 miles north-west), Chandler's Ford (13 miles south) and Romsey (13 miles south).
Around South Harewood
The nearest railway station is Andover station, roughly 4 miles north-west of the centre. A little further out are Andover War Memorial Hospital (4.3 miles north-west) and Finkley Down Farm Museum (3.5 miles north-west). Not far away are Mill Lake and Anton Lakes.
Landlord and commercial work in South Harewood
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
The process
When we arrive, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work starts. The work normally takes a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like South Harewood, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- 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.
Getting ready for the visit
- Mention any parking rules near the property
- Move anything stored near the joints
- Let us know about earlier repairs to the joints
How to get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Related advice
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Keep solvents and bleach off the sealant
- Repaint timber before it’s bare
- Clean frames with a soft cloth and soapy water
- Check the mastic once a year
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
A small gap around a frame only grows. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. Resealing closes it.