
Mastic sealant contractors in Codmore Hill
Mastic sealing for building owners, managing agents and housing associations in Codmore Hill. CHAS accredited and fully insured, with a 12-month guarantee.
- Movement joints with sealant missing
- Cracked, hardened mastic round windows on a block
- Damp patches beside frames
Mastic sealing for Codmore Hill sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle mastic sealing in Codmore Hill
Across Codmore Hill and the rest of West Sussex, we work the same way: you send details, we return a fixed quote, the joints are resealed and the 12-month guarantee follows. Addresses, photos of typical joints and a rough idea of quantities let us give a quick quote, and site visits can be arranged. We work on external wall and movement joints, balcony and threshold joints and shopfronts below residential blocks, and the failures we’re asked to look at most are brittle perimeter mastic across a building and estate-wide sealant that is simply worn out. For commercial sealant work in Codmore Hill, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
For buildings around smaller places like Codmore Hill, we group work so one trip covers it. Send photographs of the frames and joints and we will give a fixed quote.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Place
- Codmore Hill (RH20)
- Region
- West Sussex
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026

What we can’t put right
Part of a good diagnosis is knowing where sealant stops. We’ll tell you if the real problem is any of the following:
- Failed window or door frames, which need a window contractor
- Materials that need asbestos testing before work
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
If you are not sure, just call the office on 01277 525 020 or email the details over and we’ll give you a straight answer before you book.
Where we work in Codmore Hill
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- External wall and movement joints
- Communal kitchens and washrooms
- Communal entrances and stairwells
- Balcony and threshold joints
Towns and villages near Codmore Hill
Also in Codmore Hill
From enquiry to sign-off
Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. Smaller jobs around Codmore Hill can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.
- Each block or building is walked and the failed joints recorded with the likely cause.
- We send a fixed quote that sets out the joints, the products and the programme.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
Before we start on site
- Move anything stored against the joints
- Send asbestos survey details if the building is pre-2000
- Tell us which areas need to stay in use
Quotes
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or give us a call on 01277 525 020 or email the details over to discuss it first.
Advice
How the job changes by surface
Window and door perimeters on blocks
Window and door perimeters are where most mastic failure shows. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
External movement joints
External movement joints take up expansion and contraction. Once that sealant goes, rain can reach the wall.
Why deal with it now?
Replacing mastic before water gets in is a planned job. Once water has tracked in, the repair list grows and occupiers notice. Around Codmore Hill, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.
Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Why clients in Codmore Hill choose us
- One number for every site we cover
- Constructionline member
- Colours chosen to suit frames, cladding or finishes where possible
- Fixed quotes based on photographs, drawings or a visit
Keeping the joints sound
To get the most from the new sealant:
- Ask residents or tenants to report leaks and draughts early
- Make mastic part of routine maintenance checks
- Plan resealing building by building rather than complaint by complaint
- Share the asbestos register when you send details
Log the date and extent of the resealing for each block. That makes future programmes easier to plan and gives you a history.
Leaks at window perimeters spoil finishes and can affect frames. Resealing early keeps the job small.
For owners and agents in Codmore Hill
The South East is one of the drier parts of the UK. Outside work still depends on dry joints, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first. Codmore Hill lies roughly 40 miles out from central London. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres, and window and balcony mastic on them tends to age at the same rate.
With historic buildings such as Old Place Manor (to the south-west of Codmore Hill) in the wider area, owners of older properties around Codmore Hill should expect mastic to need a product that suits old masonry. For owners of several units at places like Broomers Hill Business Park, which lies north-east of Codmore Hill, one programme can deal with frame and external mastic across the lot. For agents with blocks near Pulborough station (1.2 miles south-west of Codmore Hill), a block-wide mastic programme deals with frames, balconies and entrances in one go.
Codmore Hill is about 10 miles south-west of Horsham, in West Sussex. If you are looking for mastic sealing in Codmore Hill, we can help. Codmore Hill is one of 373 places we cover in West Sussex. We also cover Brighton, some 19 miles away.
Postcode districts covered here: RH20. For a building on Masons Way, Hill Farm Lane and Stane Street or nearby, we can quote for mastic joints. Just outside Codmore Hill, we also work in Broomershill (1 mile south-east), North Heath (1 mile north-east), Nutbourne (1 mile south-east), Marehill (1 mile south-east) and Gay Street (2 miles east). A short drive away, we cover Horsham (10 miles north-east), Worthing (11 miles south-east), Bognor Regis (15 miles south-west), Chichester (15 miles south-west), Littlehampton (11 miles south) and Shoreham-by-Sea (14 miles south-east).
Around Codmore Hill
For rail, the closest station is Pulborough station, roughly 1.2 miles south-west of the centre. A little further out are Coates Castle (4.2 miles west). Green spaces nearby include The Mens.
Should maintenance staff do it?
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Questions about Codmore Hill
Can you quote for a block close to Pulborough station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Photos of each elevation help us quote accurately.
Will you take on work at estates like Broomers Hill Business Park, close to Codmore Hill?
Yes, sites like Broomers Hill Business Park are within our area, along with the rest of Codmore Hill. To start, just phone 01277 525 020 or email the details over with the unit, the joints involved and your access times.
Can weather delay the job?
Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
Which sealant will you use?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
How do you handle work on occupied blocks?
We plan around people living or working in the building. We agree the programme so you can notify occupiers and communal access is kept open.
Will you just go over the old sealant?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
Do you work in Codmore Hill?
Yes. We cover Codmore Hill, within our coverage of Greater London, South East England and Scotland. To discuss a job, call 01277 525 020 or use the quote form.