Pricing
Our Prices Are Transparent. Most Contractors Are Not.
Ask a roofing or waterproofing contractor what a job costs and you will usually be told it depends. It does depend. That is not a reason to tell you nothing. We will come and look at your roof free of charge. No obligation, and nothing to pay if you decide to do nothing about it. Until somebody has been up there, nobody knows what your roof needs, including us. Typically, work starts at around £995 for simple investigative surveys and repairs. Below are honest ranges for everything else, and what moves the number.
Indicative Price Ranges
These ranges come from jobs we have actually completed. Yours may land outside them, and if it does we will tell you why.
Flat Roof Waterproofing
Typically £15,000 to £130,000 per projectSurveyed, specified and installed with systems carrying 25 year guarantees. Simple warm roof overlays sit at the lower end of the range, complex build ups with many penetrations and details at the higher end.
Key Cost Factors:
- Roof area and complexity
- Condition of the existing deck
- System specification and guarantee
- Access, height and scaffolding
Metal Roof Coatings
Typically £15,000 to £130,000 per projectRefurbishing an ageing industrial metal roof typically costs 30 to 60 per cent less than replacing it, with far less disruption. Larger roofs benefit from economies of scale.
Key Cost Factors:
- Roof area
- Extent of cut edge corrosion
- Coating system and guarantee level
- Rooflight condition
Gutter Lining & Repair
Typically £995 to £10,000 per projectBespoke thermoplastic lining that stops leaking gutters without replacing them. Valley gutters and parapet gutters sit at different points in the range.
Key Cost Factors:
- Gutter profile and width
- Length of the run
- Outlet and drainage details
- Access equipment required
Roof Terraces & Balconies
Typically £15,000 to £130,000 per projectSeamless liquid membranes wrapped into every detail so the space below stays dry. Pedestal paving, decking and balustrades can be included as a complete terrace package.
Key Cost Factors:
- Area and detail complexity
- Finish: anti slip, paving or decking
- Balustrade and threshold detailing
- Whether the building stays occupied
Car Park Waterproofing
Typically £15,000 to £130,000 per projectTraffic grade waterproofing for multi storey and podium decks, with anti slip finishes and expansion joint detailing. We phase the work so the car park stays open.
Key Cost Factors:
- Deck area and number of levels
- Traffic loading
- Expansion joint complexity
- Phasing and access
Decorative Metal Roofing
Typically £15,000 to £130,000 per projectCopper and silver effect membranes giving the look of standing seam metal without the weight or the cost. Best suited to projects where appearance matters as much as performance.
Key Cost Factors:
- Finish chosen
- Area and detail complexity
- Substrate preparation
- Architectural detailing
Green & Blue Roofs
Typically £15,000 to £130,000 per projectExtensive sedum sits at the lower end. Intensive planting with deeper substrates costs more, and blue roofs are priced on storage volume and flow control.
Key Cost Factors:
- Extensive, intensive or blue
- Substrate depth and planting
- Structural loading assessment
- Irrigation and maintenance access
Rooflights
Typically £995 to £10,000 per projectLeaking, yellowed or fragile units replaced with thermally efficient, non fragile ones. A single dome sits near the bottom of the range, a set of large glass units or AOV smoke vents near the top.
Key Cost Factors:
- Type and size of unit
- Glazing specification
- Opening mechanism, including AOV
- Number of units and access
Metal Capping & Flashings
Typically £995 to £10,000 per projectBespoke cappings for parapets, ridges and copings, fabricated to measure in aluminium, zinc, copper or lead. Price moves with girth, metal and building height.
Key Cost Factors:
- Parapet girth and length
- Metal: aluminium, zinc, copper or lead
- Colour and finish
- Building height and access
External Cladding
Typically £15,000 to £130,000 per projectComposite insulated panels through to aluminium and zinc rainscreen cassette systems, on existing buildings and new build alike.
Key Cost Factors:
- Material and system type
- Wall area and building height
- Insulation and fire rating
- Access and scaffolding
Leak Detection & Investigation
From £995Thermal imaging, electronic leak detection and moisture mapping. This is usually where a job starts: we find the leak before anyone quotes to fix it.
Key Cost Factors:
- Roof area and number of zones
- Detection methods required
- Covering type: ballast, paving, green roof
- Depth of report and remedial specification
Roof Edge Protection
Typically £995 to £10,000 per projectGuardrails, walkways and fall arrest anchors, installed without penetrating the membrane. CDM 2015 compliant, with documentation and a rescue plan.
Key Cost Factors:
- Guardrail, walkway or anchor
- Length of perimeter or route
- Free standing or bonded fixing
- CDM documentation and rescue plan
Roof Surveys & Inspections
From £995The initial visit to look at your roof is free. A full condition survey with thermal imaging, core sampling and moisture mapping is a paid service, and that cost is usually offset against the project if you go ahead with us.
Key Cost Factors:
- Building size and number of roof areas
- Visual inspection or full diagnostic
- Equipment required
- Depth of report and specification
Vanguard ECOwarm Warm Roof Upgrades
Typically £15,000 to £130,000 per projectTapered insulation, VIP panels and Isolocore 10mm, designed to hit Part L U values and eliminate ponding. Bespoke fall schemes for every roof.
Key Cost Factors:
- Roof area and existing build up
- Insulation type
- Target U value and Building Regulations
- Tapered scheme and drainage design
- Substrate condition
- Access and phasing
The Honest Questions About Pricing
These are the questions our clients really want answered. We don’t shy away from them.
Why can’t you just give me an exact price?
Because every building is different. We could give you a number right now, but it would be meaningless without understanding your specific situation. What we can do, and what we believe in, is give you honest ranges so you can budget realistically. Then we provide a detailed, no-surprises quotation after a proper survey.
Are you the cheapest option?
Probably not, and we’d be worried if we were. The cheapest waterproofing quote often comes from contractors cutting corners on preparation, using inferior materials, or lacking the insurance and guarantees you need. We specify proven, independently certified systems from leading manufacturers. We choose them for your building, not our margin, and we stand behind that with proper guarantees and PI-insured design.
What if my budget is limited?
We’ll tell you honestly. If your budget doesn’t stretch to the ideal solution, we’ll discuss phased approaches, interim maintenance, or alternative systems that deliver the best value within your constraints. We’d rather give you an honest plan than oversell and underdeliver.
How do your prices compare to a full roof replacement?
Refurbishment systems (roof coatings, liquid waterproofing overlays and gutter lining) typically cost 30–60% less than full replacement, with less disruption. That’s why condition surveys and proactive maintenance are at the core of what we do. Catching problems early saves significant money.
Do you charge for surveys and quotes?
Initial consultations and visual inspections are typically provided free of charge. Detailed condition reports with thermal imaging, core samples, and full specifications are a paid service, because they require specialist equipment, time, and expertise to deliver properly. However, this cost is usually offset against the project value if you proceed with us.
What about hidden costs?
We hate hidden costs as much as you do. Our quotations itemise everything: materials, labour, access equipment, waste disposal, and any provisional sums for work that can only be confirmed on-site. If something changes during the project, we discuss it with you before proceeding.
Think Lifetime Cost, Not Just Upfront Price
The cheapest quote almost never delivers the lowest lifetime cost. A poorly specified or badly installed waterproofing system will fail early, causing water damage, business disruption, and the cost of doing the job again, properly, the second time.
The False Economy
- ✕ Cheapest quote wins
- ✕ No condition survey first
- ✕ Minimal preparation
- ✕ Short or no guarantee
- ✕ Failure in 3–5 years
- ✕ Do it all again + repair damage
The Vanguard Approach
- Proper condition survey first
- Right system for the application
- Thorough substrate preparation
- Manufacturer-backed guarantees
- 20–25 year system life
- Ongoing maintenance support
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