
Construction and new-build mastic in Upper Street, Hampshire
Mastic packages for new-build and refurbishment projects in Upper Street. CHAS accredited and fully insured, with a 12-month guarantee.
- Missed perimeter joints on a new elevation
- Old sealant on a refurbishment that needs stripping before new work
- Cracks opening in caulked internal joints
Construction mastic for Upper Street sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Construction mastic for commercial buildings in Upper Street
External mastic depends on the weather in a way most internal trades don’t. Cold or damp mornings, frost and condensation on frames can all hold external sealing up, so we plan elevations with the forecast and the programme in mind. Internal sealing often fills those days. We work on cladding and panel joints, floor and skirting junctions and sanitary and kitchen joints, and the usual reasons a site gets in touch are snag items on joints that need redoing before handover and inconsistent sealant finishes from plot to plot. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Upper Street, that means joint design, primers and backing rod as standard.
Around smaller places like Upper Street, building work typically means conversions of farm buildings, a few new houses or an extension to a hall or school. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.

- Place
- Upper Street (SP6)
- Wider area
- Hampshire
- Guarantee
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Keeping the joints sound
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:
- Brief the final clean team to avoid blades near sealant
- Use the product the specification names
- Get the mastic subcontractor involved early in the programme
- Protect sealed areas from following trades
Brief the sparkle clean so they don’t scrape the new joints. Blades and abrasive pads are the commonest cause of damage at the final clean so keep them off the joints.
External joints sealed in poor weather are a common cause of early failure. Holding off until conditions suit avoids callbacks, so we plan external work with that in mind.
Building and refurbishing in Upper Street
Upper Street sits in one of the drier corners of the country, the South East. Winter mornings still bring frost and condensation on frames and panels, so the external programme keeps a little slack.
Older buildings in the area around Upper Street, such as Breamore House, 0.5 miles north-east of Upper Street, need care when sealed: the product has to suit soft or historic materials. Hospital estates such as Fordingbridge Hospital (2.5 miles south of Upper Street) tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan.
Upper Street is in Hampshire. Across the SP6 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Upper Street is one of 723 places we cover in Hampshire for mastic packages. Our Southampton page has more on work in that area (18 miles or so).
Postcode districts covered here: SP6 for mastic packages. Sites close to Upper Street are covered too, including Breamore (1 mile south-east), Upper Burgate (1 mile south), Woodgreen (2 miles east), Lower Burgate (2 miles south) and Tinkers Cross (2 miles south). Further afield, our area takes in Totton (13 miles east), Romsey (14 miles east), Ringwood (8 miles south), Ashley (15 miles south-east), North Baddesley (15 miles east) and Eling (14 miles east).
Around Upper Street
Recent enquiries here include premises near Bat and Ball pub and The Burgate School and Sixth Form and the streets around them. Other landmarks nearby include Fordingbridge Museum (2.5 miles south) and Salisbury District Hospital (5.5 miles north).
Quoting for work in Upper Street
We price every job individually. The things that drive the figure:
- How accessible the joints are
- Specialist products, such as fire-rated or hygienic sealants
- Quantities, in metres or numbers
- Travel to remote or island sites
A quote for mastic packages depends on quantities, condition and access. Call for a quote.
What to include in your enquiry
A good diagnosis starts with the right details. Tell us:
- Clear photographs of the problem areas
- Any specification or named product
- Any dates the work must fit around
- Where the site is, with the postcode
Pricing a project or setting a maintenance budget? We will quote against your scope and drawings that you can work with. If you have questions first, speak to us on 01277 525 020 or email a schedule or drawings.
Leave it or put it right?
Some packages split mastic across the window fitter, kitchen fitter and plumber. The result tends to be uneven finishes and arguments about who should seal what. One mastic subcontractor for the lot keeps it simple and a consistent finish. For buildings around smaller places like Upper Street, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.
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 and we will explain how it’s made up.
Why appoint us
- Our applicators hold CSCS cards
- Over 20 years of commercial sealing
- Standard and matched colours in many product ranges
- Constructionline member for supplier checks
Work for main contractors and building owners
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.
From enquiry to sign-off
Tell us your site hours and access windows and we’ll plan around them. While we’re working, the area stays contained and tidy, and your contact hears from us before we move to the next area. For a building around Upper Street, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.
- Drawings, specification and programme come to us.
- Quantities are measured and a fixed price returned.
- The sequence is agreed with the site manager.
- Plots or floors are sealed as they’re handed over.
- 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.
Getting the site ready
- Send asbestos survey details if the building is pre-2000
- Tell us which areas need to stay in use
- Make sure the joints can be reached
Get a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Advice
Places near Upper Street
Other services in Upper Street
Do you need construction mastic in Upper Street?
Most mastic snags on new buildings come from sequencing rather than product. If sealant goes in before the last trades are through, it gets knocked, painted over or contaminated, so they end up back on the snag list.
Any of the following is a good reason to get the joints checked over:
- Failed sealant in an existing building being refurbished
- A mastic package split between trades with no clear owner
- Snag items on joints that need redoing before handover
- Frame gaps too wide for sealant alone
School extensions, at buildings such as Breamore Church of England Primary School, normally run to the summer holidays, mastic included.
Comparing quotes
- Their approach to joint depth and backing
- Which product they’ll use, and why it suits the joint
- What the guarantee covers, and for how long
- Will failed sealant be removed rather than covered?
Your questions answered
Do you cover business parks and estates near Upper Street, such as Arch Farm Industrial Estate?
Yes. Estates, retail parks and business parks around Upper Street, Arch Farm Industrial Estate among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Is Upper Street too small for you to travel to?
No. Places such as Upper Street are covered as much as the big towns. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Can you quote from photos?
That depends on the size and complexity of the job. Straightforward work can often be priced from photos and measurements, and bigger or more complex jobs usually get a visit.
Can fire-rated sealing at service penetrations be included?
Fire-rated sealing at service penetrations and linear gaps can be included where specified. Tell us what records you need and we’ll confirm with the quote.
Can you handle several sites?
Yes. Several buildings can share a single quote, and you deal with one contact throughout.
What will the job cost?
Each job is quoted on its own details. To get one, call 01277 525 020 or email a schedule or drawings.
Will you quote for a small job?
Small jobs are welcome alongside larger packages. Send details for a fixed quote.