Hampshire · England
Sand Mastic in Knights Enham
Window and door surrounds in Knights Enham need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Silicone on a period window that looks wrong
- Gaps round a timber door in stone or brick
- Weathered mastic on the most exposed windows
About our sand mastic in Knights Enham
Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties, where modern sealant can look out of place. If you have cement or filler used on old window joints that has cracked and failed mastic on an exposed elevation, we can put it right, whatever the surface.
Mastic can only go onto a dry, clean joint, so window work in Knights Enham is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Place
- Knights Enham (SP10)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Common problems we fix in Knights Enham
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
If you can see any of these, it’s time to have the joints looked at:
- Tired mastic found when preparing windows for paint
- Gaps round a timber door in stone or brick
- Draughty sash windows at the surround
- Mastic dropping out of the joint
For site and facilities teams at buildings such as Roman Way Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- Whether they’re fully insured
- How the joint is cleaned and prepared
- Whether VAT is included
- Whether the sealant suits the joint
Towns and villages near Knights Enham
More services for Knights Enham
DIY versus a professional finish
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 doesn’t work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
What sealant work can’t fix
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Decisions on consent for listed homes
- Decayed frames that need repair
- Masonry that needs repairing
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before you book.
Joints and surfaces we work on
- Tenement windows
- Sash and case windows
- Period & listed homes
- Brick reveals
- Stone surrounds
- Timber door frames
Landlord and commercial work in Knights Enham
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
If you manage several properties in or around Knights Enham, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
The process
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before work begins. The work generally takes a few hours per window, depending on the condition of the joints. Somewhere like Knights Enham needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Mention if the joints have been sealed before
- Mention any tricky access
- On commercial sites, let us know about site rules
How to get a quote
We quote each job on its own. Just ring 0345 464 0079 or drop us an email with the details.
Advice
Why it’s worth doing now in Knights Enham
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. Around Knights Enham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What you get with us
- 12-month guarantee on every job
- Rated 4.9 stars on Google
- Old sealant always removed completely
- Over 20 years’ experience
Take a look at what affects the cost or our reviews.
How to look after the new joints
After the cure time, these simple habits help:
- Get any rot dealt with first
- Avoid patching sand mastic with silicone
- Take care around the mastic when scraping paint
- Inspect the joints round the windows every year or so
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
Windows and doors in Knights Enham
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.
For an older house near a landmark such as Church of St Michael and All Angels, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Andover station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Knights Enham is about 1 mile north of Andover, in Hampshire. Anywhere in SP10, our applicators can take on sand mastic. Our Hampshire coverage runs to 683 places, and Knights Enham is one of them. We also work in Southampton, about 22 miles from Knights Enham.
We work across the SP10 postcode area for sand mastic and the streets around it. We cover properties on Manor Copse and Newbury Road. Close by, we work in East Anton (1 mile south-east), Enham Alamein (1 mile north), Smannell (1 mile north-east), Upper Enham (1 mile north) and Finkley (1 mile east). Within a short drive, we also cover Winchester (14 miles south-east), Hyde (13 miles south-east), Tidworth (8 miles west), Weeke (13 miles south-east), Kempshott (15 miles east) and Stanmore (14 miles south-east).
Near you in Knights Enham
In Knights Enham, that means homes and buildings near Harrow Way Community School, among other places. The nearest railway station is Andover station, about 1.5 miles south-west. Other landmarks nearby include Finkley Down Farm Museum (1.2 miles south-east) and Andover War Memorial Hospital (1.3 miles south-west). The countryside around Knights Enham includes Mill Lake and Anton Lakes.
Knights Enham questions
Do you work for landlords with property near Andover station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Do you cover smaller places like Knights Enham?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Knights Enham, along with the rest of our area.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit.
What is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and shaped to suit the surround.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.