Mastic Sealing in Colworth
Mastic sealing in Colworth, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Draught complaints from residents or tenants
- Damp patches beside frames
- Patchy repairs in mismatched sealant
Need mastic sealing in Colworth?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing in Colworth, done properly
Treatment starts with a proper look: what has failed, what caused it and whether new sealant will actually solve it. Failed mastic is stripped, the faces taken back to sound material, primed where the manufacturer specifies and resealed, with backing rod setting the depth where it’s needed. We work on window and door perimeters on blocks, communal entrances and stairwells and balcony and threshold joints, and what we are called in for most is leaks at window and door perimeters and patchy repairs in mismatched sealant. Whoever orders the work in Colworth, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
For owners with a single building near Colworth, we plan to finish in one visit where possible. Send photographs of the frames and joints and we will give a fixed quote.
We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.
- Where
- Colworth (PO20)
- Region
- West Sussex
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
What happens if it’s left?
Adding sealant to cyclical maintenance is an easy win. Waiting until leaks appear means working under pressure and less choice about when. Older rural buildings around Colworth move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
Why us?
- 12-month guarantee on workmanship
- Work carried out by CSCS-carded applicators
- Constructionline member
- A range of standard colours, depending on the product
Read how commercial sealant jobs are priced or how we’re accredited.
Also in Colworth
Planned mastic for Colworth portfolios
Colworth sits close to the coast, within about 3 miles. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first. Colworth is about 54 miles from central London. Managed blocks of flats are a big part of commuter-belt property, and window and balcony mastic on them tends to age at the same rate.
For agents with blocks near Bognor Regis station, which lies south-east of Colworth, a block-wide mastic programme deals with frames, balconies and entrances in one go. For owners of several units at places like The Woodhorn Business Centre (1.1 miles north of Colworth), one programme can deal with frame and external mastic across the lot. With historic buildings such as Goodwood House, 4 miles to the north-west of Colworth, in the wider area, owners of older properties around Colworth should expect mastic to need a product that suits old masonry.
Colworth is about 2 miles north of Bognor Regis, in West Sussex. We cover commercial sites throughout Colworth, whether it’s a single job or part of a planned programme. Across West Sussex, 373 places are covered, including Colworth. Sites around Portsmouth have their own page, about 16 miles away.
Postcode districts covered here: PO20. Nearby places we also cover include Merston (1 mile west), Oving (2 miles north-west), Lagness (2 miles south-west), Runcton (2 miles west) and Shopwyke (2 miles north-west). Further afield, our area takes in Worthing (13 miles east), Chichester (4 miles north-west), Selsey (7 miles south-west), Littlehampton (8 miles east), Rustington (9 miles east) and Storrington (13 miles north-east).
Near you in Colworth
Around Colworth, our work takes us to commercial buildings near The Regis School and The Brooks Local Nature Reserve. The nearest railway station is Bognor Regis station, roughly 2.5 miles south-east. Nearby you’ll also find Bognor Regis Museum (2.7 miles south-east) and Tote Copse Castle (1.3 miles north-east).
Surface by surface
External movement joints
Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.
Commercial and mixed-use buildings
Commercial buildings have mastic at shopfronts, entrances and external joints. A planned programme suits multi-building portfolios.
From enquiry to sign-off
We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Rural sites near Colworth may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
What we need from you
- Share your working hours and any access restrictions
- Share the asbestos register for older buildings
- Move anything stored against the joints
Ask for a quote
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.
Advice
Should maintenance staff do it?
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.
Owners, agents and contractors
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
Your questions answered
Is The Woodhorn Business Centre, near Colworth, within your area?
Yes. Estates, retail parks and business parks around Colworth, The Woodhorn Business Centre among them, are all within reach. Photos and a short description are enough for a first look.
Can being near the sea in Colworth affect the sealant we need?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.
When is resealing likely to be due?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Do you work with property factors and landlords?
Yes. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work and work can be quoted per building or as a whole.
Do you cover Colworth?
Yes. Colworth falls within our area, and the simplest way to start is to call the office on 01277 525 020 or email a schedule or drawings.
Is any job too small?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
How much does the work cost?
It depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a fixed quote.
What affects the price in Colworth
What shapes the price:
- Site requirements such as inductions and permits
- Which sealant the job calls for
- Whether old sealant has to be cut out first
- Phasing around occupants
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
What we need to price the job
There’s no need for a formal survey. These details are enough to start:
- Whether the building will be occupied during the work
- Drawings or a marked-up plan, if available
- Anything awkward about access or site hours
- Any specification or named product
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to ring 01277 525 020 or send photos by email with what you know.