Surrey · England
Aaron's Hill Window Mastic
Window mastic for Aaron's Hill, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Draughts coming in around windows and doors
- Gaps where the sill meets the wall
- Sealant in the wrong colour for the frame
Window mastic for homes and businesses in Aaron's Hill
Over two decades of sealing frames has taught us which products suit which walls. We are ARBOMaster approved and fully insured, and we give a 12-month guarantee on the work. We work on patio & French doors, window sills and timber windows & doors, and people most often call us about sealant in the wrong colour for the frame and gaps left after new windows were fitted.
In a smaller place like Aaron's Hill, some walls face open ground and catch the full force of the weather, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.
- Location
- Aaron's Hill (GU7)
- Region
- Surrey
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Repaint timber before it’s bare
- Keep paint off silicone joints
- Air rooms to keep condensation down around windows
- Make sure the drainage slots aren’t blocked
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
Leaks normally 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.
Honest limits
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- A frame that has rotted at the joint
- Worn gaskets, brush seals or a door that has dropped
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- uPVC windows
- Patio & French doors
- Timber windows & doors
- Aluminium frames
- Window sills
- Composite doors
Your questions about window mastic in Aaron's Hill
Will you come out to Aaron's Hill?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Godalming station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
How long should I leave it?
Cure times vary by product. We tell you how long to leave it before we go.
Can you match the sealant to my frames?
Yes. Grey and black frames get grey or black sealant, and wood-effect frames normally suit brown.
Does the work come with a guarantee?
Yes, with our one-year guarantee. A yearly look at the joints helps them last.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Aaron's Hill.
How do I get a quote for window mastic in Aaron's Hill?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or drop us an email and tell us what needs doing and where.
Do you need window mastic in Aaron's Hill?
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, while a joint packed solid cannot stretch. Backing rod sets the right depth.
Any of these means the joints need attention:
- Damp patches on the reveal after heavy rain
- Rushed sealant from a window installation
- Black, perished sealant on frames
- Gaps where the sill meets the wall
If you let a flat or house near Godalming station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Before booking anyone
- What product goes in the joint
- When the joint can take water or movement
- Which colour the sealant will be
- Who turns up on the day
Aaron's Hill homes and the weather
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Loseley Park (about 2.5 miles north-east) are a reminder that the area around Aaron's Hill has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Homes close to St Mark's Church and Community Centre include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as St Mark and All Saints Church of England Primary are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Aaron's Hill is about 1 mile west of Godalming, in Surrey. Anywhere in GU7, our applicators can take on window mastic. Aaron's Hill is one of 395 places in Surrey we cover. You can also see our page for Crawley, about 20 miles away.
Every address in GU7 is covered for window mastic. That includes homes and businesses on Mayen Road, Grove Road and Holly Lane. You will find Aaron's Hill on the A3100, so it’s easy for us to get to with everything needed for window mastic. Other places close to Aaron's Hill include Upper Eashing (1 mile west), Godalming (1 mile east), Lower Eashing (1 mile west), Milford (1 mile south-west) and Tuesley (1 mile south). We also work in nearby towns such as Guildford (5 miles north-east), Woking (10 miles north), Camberley (11 miles north), Farnham (7 miles west), Dorking (13 miles east) and Frimley (10 miles north-west).
Near you in Aaron's Hill
Typical jobs here are in homes near St Hilary's School, Phillips Memorial Park and The Inn on the Lake and the streets around them. For rail, the closest station is Godalming station, about 0.6 miles east of the centre. A little further out are Godalming Museum (0.7 miles east) and Guildford Castle (4.3 miles north-east). The countryside around Aaron's Hill includes Frith Hill and Lower Lake.
How the job changes by surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We’ll tell you if that is what we find.
Window sills
Stone and concrete sills have their own joints, including the one between the sill and the frame above. Those are sealed with a product suited to stone or concrete.
Nearby places to Aaron's Hill
What else we do in Aaron's Hill
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
What we do, step by step
On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before work begins. The work normally takes anything from an hour or two to a full day, depending on how many frames there are. For a job in Aaron's Hill, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Keep pets and children clear of the area while we work
- For business premises, tell us about site rules or sign-in
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or drop us an email.
Related 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. Homes in smaller places like Aaron's Hill can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.
Why Aaron's Hill clients choose us
- Any old sealant cut out fully, not covered over
- Sanitary silicone with an anti-fungal additive in wet areas
- A sealant colour to suit the surroundings
- Tidy, careful work