The Mastic Doctor team standing beside their branded vans outside an office building
West Sussex · England

Construction Mastic in Roffey

Planning work on a mastic package in Roffey? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Inconsistent sealant finishes from plot to plot
  • Bath and shower joints scraped during the final clean
  • Mastic snags holding up handover
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Construction mastic for Roffey sites

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Questions about Roffey

Is a smaller place like Roffey outside your area?

No. Small places get the same service as large ones. London and every South East county are within our area. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Is hospital work, at somewhere like Horsham Hospital, something you do?

Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.

Do you do internal caulk as well as external mastic?

Window and door perimeters, internal decorators’ caulk where specified, sanitary joints, kitchens, movement joints and snagging. The scope follows your specification.

Do you use the sealant named in the specification?

We follow the specified sealant. Product standards such as BS EN 15651 are often named in specifications.

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.

What happens if the weather stops external sealing?

Outside, the joint has to be dry and the temperature within the product’s limits. Frosty or damp mornings can hold up external sealing so we typically switch to internal work when that happens.

Can you work plot by plot or floor by floor?

Working to your programme, we seal each area as it’s handed over. The sequence is settled with your site team.

Construction mastic for commercial buildings in Roffey

Mastic Doctor has been a subcontractor on construction projects for over 20 years. We price from drawings and the specification, agree the sequence with the site team and seal as areas are released. For construction mastic on a scheme in Roffey, send drawings through our quote form, or phone or email us to talk it through. We work on internal decorators’ caulk, brick and block movement joints and floor and skirting junctions, and what we’re called in for most is perimeter gaps outside the sealant’s range and failed sealant in an existing building being refurbished. A single leaking joint is often how a building in Roffey first comes to us: we look at the rest while we’re there and tell you what we find.

In a smaller place such as Roffey, construction tends to mean small housing schemes, conversions and extensions to community buildings. Even a small site needs its perimeter and facade joints sized, backed and sealed properly.

A 12-month guarantee applies to all our work. If an installation problem shows up, ring 01277 525 020 or use the quote form and we will arrange a return visit.

Place
Roffey (RH12, RH13)
Wider area
West Sussex
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Construction mastic around Roffey: points for this area

Roffey lies roughly 31 miles out from central London. Towns within reach of London tend to keep building, from flats to offices and schools, and main contractors there need mastic that keeps to the programme. Roffey sits in one of the drier corners of the country, the South East. Even so, frost and condensation on steel and glass are common on winter mornings, which is why external dates are agreed with the site manager.

Extensions at sites like Horsham Hospital (1.1 miles west of Roffey) normally sit beside working departments, and the mastic follows strict access rules. School extensions, at buildings such as Northolmes Junior School, typically run to the summer holidays, mastic included. Projects at colleges like The College of Richard Collyer (1 mile west of Roffey) tend to run to term dates, so the mastic is planned tightly.

Roffey is about 1 mile north-east of Horsham, in West Sussex. We send applicators to Roffey for mastic packages, handled exactly as we handle every other area. 373 places across West Sussex fall within our area, including Roffey. Our Brighton page has more on work in that area.

Anyone looking for construction mastic in RH12 and RH13 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. For a building on Innes Road, Agate Lane and Manor Road or nearby, we can quote for mastic packages. Close to Roffey, our area also takes in Mannings Heath (2 miles south), Faygate (2 miles north-east), Colgate (2 miles east), Monk's Gate (3 miles south) and Kilnwood Vale (3 miles north-east). Nearby towns on our patch include Crawley (5 miles north-east), Haywards Heath (10 miles south-east), Burgess Hill (11 miles south-east), East Grinstead (13 miles east), Broadfield (4 miles east) and Storrington (12 miles south-west).

Near you in Roffey

In Roffey, that means premises near Bohunt Horsham and Millais School, among other places. Roffey’s nearest station is Littlehaven station, about 0.6 miles north-west. Other landmarks nearby include Christs Hospital School Museum (3.5 miles south-west) and Horsham Hospital (1.1 miles west). For a walk, there’s Warnham LNR.

Map of Roffey © OpenStreetMap contributors

From enquiry to sign-off

Occupied buildings need a little choreography. We sign and contain the area we’re in, with routes through the building left open and work section by section so the rest of the building stays in use. For a job in Roffey, the main thing is a clear picture of the work. You’ll then get a fixed price for the work.

  1. Drawings, specification and programme come to us.
  2. We take off quantities and return a fixed quote.
  3. We agree with the site team which areas come first.
  4. Plots or floors are sealed as they’re handed over.
  5. Joints are prepared, backed and sealed to the specification.
  6. Snags are cleared and the package signed off with our 12-month guarantee.

Before we start on site

  • Send asbestos survey details if the building is pre-2000
  • Warn occupants and staff about the work
  • Send your site hours and access windows

Get a fixed quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we will arrange a site visit if anything is unclear.

Ask for a quote

Related advice

What happens if it’s left?

Patching snags as they appear can feel quicker than a proper close-out. A planned sweep of each plot or floor catches the lot in one go, and avoids repeated visits. Snagging can be priced as a separate stage. Over time, UV, weather and movement wear any sealant out. Replacing it before it fails keeps water out.

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why choose Mastic Doctor in Roffey

  • Colours chosen to suit frames, cladding or finishes where possible
  • One phone line for London, the South East and Scotland
  • Old sealant cut out, never sealed over
  • Colours confirmed for the specified product

See our cost guide or our accreditations and insurance.

Building owners, agents and FMs in Roffey

Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first.

As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. We’re fully insured, and our insurance certificate can go with the quote.

What the job involves on each surface

Snagging before handover

The last pass before handover is where mastic snags are cleared. We can work through the snag list area by area.

Internal decorators’ caulk

Caulk is easy to apply badly. Done properly, it saves decorators time and gives a clean line and keeps the snag list down.

Looking after the joints

For the best life from the joints:

  • Ask cleaners to use soft cloths around fresh sealant
  • Ask installers to correct oversized gaps first
  • Release areas for mastic once other trades have finished in them
  • Put any product change through the designer first

At handover, keep the product details with the O&M information. Future maintenance is easier when the products are known, and tells you what to reseal with. Tell us what records you need and we will confirm with the quote.

In wet areas, a weak sanitary joint shows up quickly once the building is occupied. Leaks behind showers and basins damage finishes and floors, and the repair falls into the defects period. Proper preparation, with the right silicone first time, keeps it off the defects list.

How the quote is worked out

What shapes the price:

  • The site’s rules and procedures
  • Backing rod, priming and other preparation
  • Specialist products, such as fire-rated or hygienic sealants
  • Removal of failed or old sealant

The product called for affects the cost, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

What we need to price the job

We can often quote from photographs and a few details. It helps to include:

  • Your programme or deadline
  • Access details, including height
  • Whether an asbestos survey exists
  • A wide shot and a close-up of the area

The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or call the office on 01277 525 020 or email us to discuss it first.

Accreditations

Trusted. Accredited. Insured.