Top 10 UK SEO Agencies for Air Conditioning Businesses (2025)

If you run an air conditioning or HVAC company, you already know how competitive things can get, especially online. Getting found by the right people at the right time (like when their AC breaks down) can make all the difference between a booked-out calendar and a quiet week.

The good news? A solid SEO partner can help you turn your website into a lead machine, even if you’ve never touched Google Analytics in your life.

Here are 10 of the best SEO agencies in the UK that work with local service businesses, trades, and property-related companies and why they’re worth a look.

1. SEO Engico – Smart SEO That’s Built for Trades

📍 London | seoengico.co.uk

SEO Engico specialises in helping trades and service-based businesses like air conditioning companies generate real, consistent leads. Their approach is simple: no fluff, just results. They combine SEO, Google Ads, and landing page strategy to make sure your phone rings with people who are actually ready to book.

• Grew organic traffic by 6x for a London-based AC company
• Focus on local visibility + cost-efficient Google Ads
• Real tracking, real numbers — no vanity metrics
• Founded by engineers, built for real-world business growth

Best for: HVAC and AC companies who want clear communication, fast implementation, and leads that actually convert.

2. Fiverr Pro – Harrison Mann

📍 Leeds | harrisonmann.co.uk

A well-reviewed agency on Fiverr Pro and independently run by Richard Mann, this Leeds-based SEO consultant works with trades, small businesses, and local service providers. He offers monthly SEO packages that include audits, on-page optimisation, and rankings tracking.

• Transparent pricing
• Works with plumbing, HVAC, and property businesses
• Offers affordable entry-level packages

Best for: Smaller air con businesses that need dependable support at a reasonable price.

3. Fat Fish Marketing

📍 Brighton | fatfishmarketing.com

Fat Fish works with small and mid-sized companies across the UK, including home services and building maintenance firms. They specialise in helping businesses understand SEO with clarity and are great for those wanting education alongside service.

• Clear strategy + education-based approach
• Experience with trades and services
• UK-based team with solid technical SEO knowledge

Best for: AC companies that want to understand what’s being done and why.

4. Clickslice

📍 London | clickslice.co.uk

Clickslice has carved out a reputation for getting local businesses ranking quickly using technical SEO, link building, and content marketing. They’ve worked with trades and property services across London.

• Offers local SEO packages
• Trusted by tradespeople and local contractors
• Clear deliverables and reporting

Best for: AC companies in competitive city areas like London.

5. GrowTraffic

📍 Rossendale, Lancashire | growtraffic.co.uk

With a name like GrowTraffic, it's no surprise they focus on increasing visibility. They’ve worked with construction, home improvement, and property businesses and bring a human tone to SEO.

• In-house team that focuses on content + technical
• Proven results with B2B and B2C services
• Family-run, approachable, and flexible

Best for: HVAC companies who want to invest in ongoing, content-led growth.

6. SUSO Digital

📍 London | susodigital.com

SUSO is a well-established agency with strong technical SEO experience. While they often work with SaaS and eCommerce brands, they also support niche service providers and have a data-first approach.

• Great for larger-scale AC companies with multi-location sites
• Strong backlink and technical foundation
• Based in London but serves UK-wide

Best for: Commercial HVAC firms or those ready to scale nationally.

7. Optimise London

📍 London | optimiselondon.com

A boutique agency with great reviews, Optimise London offers fully managed SEO and PPC for local businesses, including home services and property companies.

• Website redesign + SEO bundles available
• Good communication and transparent process
• Has helped contractors improve Google Maps visibility

Best for: Air con installers needing website and SEO in one place.

8. Re:signal

📍 London | resignal.com

Re:signal is more high-end, but they’ve worked with big property and lifestyle brands across the UK. If you're an established air conditioning business looking to dominate content and organic search, they bring serious expertise.

• Ideal for national or multi-location firms
• Content marketing + technical SEO strategy
• Trusted by big brands

Best for: HVAC brands with multiple branches or B2B contracts.

9. Vixen Digital

📍 Brighton | vixendigital.com

A personable, independent agency that works with local businesses and focuses on SEO and PPC. Known for solid communication, they're a good match for trade businesses wanting a hands-on partner.

• Great reviews from property and service companies
• Offers lead gen-focused SEO and Ads
• Small team, personalised service

Best for: Business owners who want an agency that feels like an extension of their team.

10. Improve My Search Ranking

📍 London | improvemysearchranking.com

Specialising in local SEO, this agency has worked with many UK-based contractors and service businesses. Their work has helped HVAC and electrical companies improve visibility and enquiries.

• Great with Google Maps/local pack rankings
• Offers monthly performance reports
• Works across trades and construction

Best for: AC businesses looking to rank locally and get more quote requests.

The truth is, most air conditioning companies don’t need a huge agency. You just need a team that understands how customers search, how to structure your website properly, and how to get you found when it matters most.

If you’re looking for a down-to-earth, results-focused partner, SEO Engico is a solid place to start. We’ve helped dozens of service-based businesses grow with smart SEO, clean tracking, and strategies that make sense, not just buzzwords.