West Sussex · England
Sand mastic for sash & case windows in Crockerhill, West Sussex
Sand mastic in Crockerhill from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cement or filler used on old window joints that has cracked
- Mastic round period door frames that has failed
- Mastic that needs renewing before redecorating
When to call us in Crockerhill
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
It’s worth asking for a quote if you see:
- Open joints round the window box
- Modern sealant on a period surround
- Draughts and rain around sash boxes
- Cement or filler used on old window joints that has cracked
Managing a site like Tangmere Primary Academy? Then its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- How hidden problems are handled
- What guarantee comes with the work
- What the cure time is
- How the joint is cleaned and prepared
Sand mastic in Crockerhill, done properly
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic is the traditional choice, and we can replace one with the other. We work on tenement windows, timber door frames and period & listed homes, and people most often call us about draughts and rain around sash boxes and failed mastic on an exposed elevation.
In a village or hamlet like Crockerhill, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
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
- Crockerhill (PO18)
- Region
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Quotes for sand mastic in Crockerhill
For a quick quote, just ask. What matters most is:
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
- Working hours on commercial sites
- The product the joint needs
Leaving a failed joint usually makes the job bigger, not smaller. If you are unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
Helping us quote
When you call or email, it’s useful to know:
- How many joints, rooms or windows are involved
- Where the property is
- Photos by email, if that’s easy
- If it’s domestic, commercial or a hotel
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Also near Crockerhill
What else we do in Crockerhill
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Frames and glazing around Crockerhill
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 Goodwood House (about 2.6 miles north-west) nearby, there’s older building stock in the area around Crockerhill as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Barnham station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. In the older streets around The Parish Church of St Mary, the joint between an old wall and a newer frame is usually the first place rain gets in.
Crockerhill is about 4 miles east of Chichester, in West Sussex. For sand mastic in and around Crockerhill, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We cover West Sussex from our Crawley base, Crockerhill included. Crockerhill is one of 371 places in West Sussex where we work. Portsmouth is on our list too, about 17 miles from Crockerhill.
All of PO18 is within our area for sand mastic, from the main roads to the quietest streets. Neighbouring places we cover for sand mastic include East Hampnett (1 mile south-west), Norton (1 mile south-east), Aldingbourne (1 mile south), Nyton (1 mile south-east) and Westergate (2 miles south-east). Further out, we also cover Worthing (13 miles east), Bognor Regis (4 miles south), Chichester (4 miles west), Selsey (9 miles south-west), Littlehampton (7 miles south-east) and Emsworth (11 miles west).
Around Crockerhill
Typical jobs here are in homes near Ormiston Six Villages Academy and The Winterton Arms Public House. Crockerhill’s nearest station is Barnham station, about 2.7 miles south-east of the centre. Nearby you will also find Tote Copse Castle (1.4 miles south) and Chichester Centre (3.7 miles west). Green spaces nearby include Levin Down.
Questions from Crockerhill
Is Crockerhill within the area you cover?
Yes, Crockerhill is covered. 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 Barnham station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
Is it possible to take out silicone and use sand mastic instead?
Yes, we do this often. All the old silicone is removed first so the mastic can sit properly.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area to suit the site.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant.
Should I check with the council before work on a listed or conservation-area home?
Checking first is sensible. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few photos.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Aftercare tips
A little care helps the new joints last. We recommend:
- Avoid heavy scraping on the mastic joint
- Have rotten timber repaired before new mastic goes in
- Inspect the joints round the windows every year or so
- Find out about consent before window work on a listed home
Leave the new mastic unpainted, which is the traditional advice. Ask us before any decorating around it.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens.
Why act early in Crockerhill
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic suits the building and blends with the stone or brick. Older cottages and farmhouses around Crockerhill can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Why us?
- 20+ years of sealant experience
- Any old sealant cut out fully, not covered over
- Fully insured
- Arbo and Everbuild products
Read our cost guide or what customers say.
What sealant work can’t fix
It helps to know what we cannot do:
- Crumbling stone or brickwork round the window
- Broken panes
- Timber that has rotted
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Period & listed homes
- Sash and case windows
- Timber door frames
- Stone surrounds
- Tenement windows
- Brick reveals
The process
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours per window, depending on the condition of the joints. In a small place like Crockerhill, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Mention any tricky access
- Clear the area around the work
- For business premises, tell us about site rules or sign-in
Get a quote
For sand mastic in Crockerhill, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before we start.