Construction Mastic in Shenfield
Planning work on a mastic package in Shenfield? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Failed sealant in an existing building being refurbished
- Frame gaps too wide for sealant alone
- Different trades sealing to different standards
Construction mastic in Shenfield
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How the quote is worked out
The price varies from site to site. It mainly depends on:
- Phasing around occupants
- The product specified
- How much there is to seal
- Whether old sealant has to be cut out first
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Details that help us quote
The more we know, the firmer the quote. When you get in touch, include:
- Approximate linear metres or a joint schedule
- Access details, including height
- Whether an asbestos survey exists
- What the building is and how it’s used
Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.
Construction mastic in Shenfield
Since 2005 we have worked alongside main contractors, developers and fit-out firms. Quantities come off the drawings, the sequence is agreed with the site manager and the work follows the trades. To price a package in Shenfield, send drawings and the specification through our quote form. We work on cladding and panel joints, window and door perimeters and floor and skirting junctions, and the usual reasons a site gets in touch are failed sealant in an existing building being refurbished and a long mastic snag list close to completion. A specialist sealant contractor works differently from a general builder: in Shenfield, that means joint design, primers and backing rod as standard.
Around places like Shenfield, a lot of construction is the conversion of older buildings, which leaves joints between old walls and new frames that need a sealant able to take the movement.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Location
- Shenfield (CM15, CM13)
- Wider area
- Essex
- Guarantee
- 12 months on every job
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
For managing agents and facilities managers
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, and each stage is agreed with your contact.
Building owners and managing agents use us on everything from one building to a spread of sites. One quote can cover more than one site, which keeps the paperwork simple.
When it isn’t the sealant
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Rework caused by others damaging completed areas
- Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
- Glazing units that are cracked or misted
Not sure which it is? You can call 01277 525 020 or email the details over and we’ll tell you honestly before you book.
Where we work in Shenfield
- Cladding and panel joints
- Window and door perimeters
- Floor and skirting junctions
- Internal decorators’ caulk
- Sanitary and kitchen joints
- Brick and block movement joints
Questions we are asked in Shenfield
Is Shenfield too small for you to travel to?
Not at all. Shenfield is within our area. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
Is a hospital such as Brentwood Community Hospital somewhere you can work?
Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
How long does a typical visit take?
The duration is planned around your programme and the access we are given. We will give you an estimate of time on site when we quote.
How do I request a quote?
There are four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.
Do you do internal caulk as well as external mastic?
Inside and out: frame perimeters, movement joints, caulk where called for, sanitary and kitchens in one fixed quote.
Is the mastic package guaranteed?
The work is guaranteed for 12 months. Keeping other trades off finished joints prevents most problems.
How the job changes by surface
Fire-rated sealant where specified
Fire-rated sealant is one type of fire-stopping product. Collars, wraps, batts and boards are specified for other services. Record requirements are agreed with the quote.
Bathrooms, en suites and washrooms
Across a block of flats or a hotel, sanitary sealing is repeated in every room. A single team keeps the standard consistent, plot by plot or floor by floor.
New build and refits around Shenfield
Central London is about 20 miles from Shenfield. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme. Shenfield 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, so external mastic is timed for workable conditions and agreed with the site manager.
New wings at hospitals like Brentwood Community Hospital, 0.5 miles south of Shenfield, bring long runs of window and panel joints to seal. When a school such as Shenfield St. Mary's Church of England Primary School is extended or refurbished, the mastic package is often squeezed into the holidays. Hotels like Brentwood Hotel, 1.3 miles to the south-west of Shenfield, rarely close for long, so refurbishment mastic is phased floor by floor.
Shenfield is about 1 mile north-east of Brentwood, in Essex. If you’re looking for construction mastic in Shenfield, we can help. Shenfield is one of 644 places we cover in Essex. Our London page has more on work in that area.
We cover the CM15 and CM13 postcode districts for mastic packages. Buildings on York Road, Hall Lane and Worrin Road are within our area for mastic packages. If your building is just outside Shenfield, we cover Brentwood (1 mile south-west), Hutton Mount (1 mile south-east), Hutton (2 miles east), Ingrave (2 miles south-east) and Mountnessing (2 miles north-east). Nearby towns on our patch include Chelmsford (10 miles north-east), Basildon (7 miles south-east), Harlow (13 miles north-west), Canvey Island (14 miles south-east), Billericay (4 miles east) and Rayleigh (13 miles east).
Near you in Shenfield
Around Shenfield, our work takes us to commercial buildings near Sawyers Hall College, Hutton Country Park and Shenfield High School and the streets around them. The closest station to Shenfield is Shenfield station, about 0.5 miles east. Other landmarks nearby include Brentwood Community Hospital (0.5 miles south). For a walk, there’s Thorndon Park.
Our process
On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before any cutting starts, and the work usually takes a day or two on a small fit-out and several weeks on a large multi-storey package. Several jobs near Shenfield can be grouped on one trip. Mention the building’s opening times and we’ll work within them.
- We start with the drawings, specification and programme.
- We take off quantities and return a fixed quote.
- We agree with the site team which areas come first.
- Each area is sealed when it’s released.
- Every joint is cleaned, set to depth and sealed with the specified product.
- After snagging, the work is handed over under our 12-month guarantee.
Preparing the site
- Let us know about inductions and permits
- Tell us your opening times and when work is allowed
- Move anything stored against the joints
Request a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.
Advice
Looking after the joints
After handover, a little attention goes a long way:
- Flag uneven or tapered frame gaps early
- Brief the final clean team to avoid blades near sealant
- Use the product the specification names
- Don’t force external sealing on a damp or frosty day
Record which products went where in the handover file. That helps the building owner maintain the joints later, and tells you what to reseal with. Tell us what records you need and we’ll confirm with the quote.
One unsealed frame can let water into finished internal areas. On a new building that means remedial work after decorating and possibly a delayed handover. Checking perimeters before internal finishes go on avoids it.