Mastic contractors in Broadgate
Sealant work in Broadgate for main contractors, managing agents and facilities managers: mastic packages for new-build and refurbishment projects, with a fixed quote first.
- Cracks opening in caulked internal joints
- Perimeter gaps outside the sealant’s range
- Snag items on joints that need redoing before handover
Need construction mastic in Broadgate?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Construction mastic for commercial buildings in Broadgate
Getting a subcontractor through site induction should be simple. We’re a Constructionline member and CHAS accredited, and every applicator holds a CSCS card, and we are fully insured. RAMS, an insurance certificate and CSCS details can be confirmed with the quote if you tell us what you need. If you have inconsistent sealant finishes from plot to plot and missed perimeter joints on a new elevation, we can put it right. Most enquiries from Broadgate start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Conversions of older rural buildings near smaller places such as Broadgate bring stone, flint, brick and timber up against new glazing. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Broadgate (SO51)
- Wider area
- Hampshire
- Cover
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
FAQs: Broadgate
Is hospital work, at somewhere like Wessex Hospital, something you do?
Yes, provided the work is planned with the site’s estates team. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Is Broadgate too small for you to travel to?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
How long will the new sealant last?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
Can you handle several sites?
Yes. Several buildings can share a single quote, with one point of contact.
Can you come in just for snagging?
Yes, we can. Send the snag list or photos and we’ll price it, with the work timed to your handover date.
How long does a job like this take?
The duration is planned around your programme and the access we are given. You’ll have an expected duration with the quote.
What happens if the weather stops external sealing?
External sealing goes ahead only with a dry joint inside the product’s temperature range. Wet or cold joints cause adhesion problems so it’s better to wait.
Surface by surface
Internal decorators’ caulk
Acrylic caulk fills internal gaps around trims, boards and frames ahead of decorating. It’s for gaps that stay still and get painted while moving joints need a flexible sealant.
Window and door perimeters
Frames sealed into the opening keep rain out of the reveal. We use the specified perimeter sealant, typically a low-modulus neutral-cure silicone, with backing rod in deeper gaps.
Towns and villages near Broadgate
More services for Broadgate
Building and refurbishing in Broadgate
Broadgate lies roughly 66 miles out from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, which keeps mastic packages in demand. Broadgate is in the South East, one of the UK’s drier regions. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so the external programme keeps a little slack.
Historic houses such as South Stoneham House, 4.9 miles south of Broadgate, are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products. For a contractor working at a hospital such as Wessex Hospital, 2.3 miles east of Broadgate, perimeter and facade sealing is planned around patients and deliveries.
Broadgate is about 2 miles north-west of Chandler's Ford, in Hampshire. Any commercial site in Broadgate is covered, whether it’s a single job or part of a planned programme. Broadgate is one of 723 places we cover in Hampshire. Southampton is covered too, around 6 miles from Broadgate.
Postcode districts covered here: SO51 for mastic packages. For a building on Hook Road, Broadgate Farm and Woodlea Way or nearby, send details and we’ll quote for mastic packages. Nearby places we also cover include Knapp (1 mile north-west), Ampfield (1 mile west), Gosport (1 mile west), Crampmoor (2 miles west) and Lower Slackstead (2 miles north-west). A short drive away, we cover Winchester (6 miles north-east), Eastleigh (4 miles south-east), Fareham (14 miles south-east), Andover (15 miles north), Totton (7 miles south-west) and Hedge End (8 miles south-east).
Around Broadgate
Around Broadgate, our work takes us to commercial buildings near White Horse Public House and Thornden School. For rail, the closest station is Chandlers Ford station, roughly 1.8 miles south-east of the centre. Other landmarks nearby include Romsey Community Hospital (3.2 miles west) and Eastleigh Museum (3.5 miles south-east). For a walk, there’s Flexford Nature Reserve.
Our process
Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. If others near Broadgate need work, visits can be combined. You’ll have a fixed quote before work starts.
- We price from the drawings, specification and programme you send.
- You receive a fixed quote listing scope, products and phasing.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- We seal each plot or floor as it’s released to us.
- Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
- Snags are cleared before handover and completed areas carry our 12-month guarantee.
What we need from you
- Tell us your opening times and when work is allowed
- Explain the parking and delivery arrangements
- Tell us what induction or permit system the site runs
Quotes
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.
Related advice
Cost factors for mastic packages
Quotes vary with the job. It mainly depends on:
- Site requirements such as inductions and permits
- The total length or number of joints
- Distance, for remote addresses
- Backing rod, priming and other preparation
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.
Details that help us quote
Whether it’s one area or a whole building, the same details help:
- The asbestos register, for older buildings
- Specification clauses that apply
- How the joints are reached, and at what height
- Rough lengths or quantities, or drawings if you have them
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, ring 01277 525 020 or email us.
General trades versus a specialist
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. That’s why many clients bring in a specialist from the beginning.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Maintenance after handover
Cleaning and maintenance staff play a part too. Pass these on to them:
- Ask installers to correct oversized gaps first
- Record the products used in the O&M file
- Put any product change through the designer first
- Share drawings and the specification as soon as possible
A new structure shifts as it loses construction moisture. The right product in each joint copes with that while rigid fillers and caulk can crack where movement is larger. If that happens, let us know.
Leaving the mastic snag list to the end squeezes everyone. Clearing snags area by area spreads the work out.
Do you need construction mastic in Broadgate?
On a live site, contamination is the biggest threat to a new joint. Plaster dust, release agents, protective film residue and damp all stop sealant bonding, so preparation matters as much here as on a reseal.
These are often picked up first by site or facilities staff:
- Caulk cracking where joints are moving more than expected
- Window and door perimeters that won’t pass inspection
- Failed sealant in an existing building being refurbished
- Oversized or tapered gaps around new frames
School extensions, at buildings such as Ampfield Church of England Primary School, normally run to the summer holidays, mastic included.
Questions to ask before you book
- Which product they’ll use, and why it suits the joint
- What the guarantee covers, and for how long
- How the joint faces will be prepared and primed
- Their pre-qualification and accreditations