Are your systems energy efficient?

All systems we install meet current energy efficiency standards, and we offer solar-compatible options for further energy savings.

Air conditioning

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We maintain and install air conditioning units in the following areas in Costa Blanca North covering, Finestrat, Altea, Alfaz, Albir, La Nucia, Callosa, Jalon, Pego, Orba, Benissa, Calpe, Moraira and Teulada, Benitachell, Javea, Denia, Oliva and Gandia.

New installations
Split systems
Centralized systems with ducting
Ceiling cassettes
Maintenance & repair
Leak detection and re-gassing

Not only do 100% Plumbing offer our own comprehensive guarantee for work undertaken, we also offer a full and comprehensive after sales service liaising on our customers behalf with manufacturers where necessary.

We are 100% committed to look after our customers best interests, providing information to our customers on grant schemes and latest news and technological advances.

100% legal and qualified so that our customers can rest assured they will always receive quality installation at the best prices.

Reliable Heating, Gas & Air Conditioning Installations

At 100% Plumbing, we install efficient heating, gas, hot water, and air conditioning systems tailored to your property’s needs. From radiators to split AC units, we ensure full legal compliance and year-round comfort across the Costa Blanca.

Central Heating & Gas Solutions Built to Last

We fit all types of central heating: radiators, underfloor systems, and combi boilers powered by gas, oil or heat pumps. Every system comes with RITE certification, ensuring full compliance with Spanish regulations. As licensed “Empresa instaladora A”, we also manage gas installations and inspections.

Air Conditioning Systems for Every Space

Our service begins with a thorough survey of your property to determine the ideal system. We install:

Single split systems – fast, efficient and installed in a few hours.
Multi-split systems – one exterior unit serving multiple indoor units.
Ducted systems – discreet and powerful, delivering air through ceiling or wall vents. May require false ceiling installation.

We manage the entire installation, including electrics, plastering, false ceilings, and ducting.

      
   100% Plumbing & Construction
   130 Google reviews 
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   68point9 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing and fast service. They were really professional and did an amazing job on a very short notice.
  
 
      Posted on Google  
   
   Carol Horne 
 
 
 
 Trustindex verifies that the original source of the review is Google. We found 100% to be very professional and efficient when they recently replaced our outdated air condicioning and repainted the interior of our house. The whole team were great.
  
 
      Posted on Google  
   
   Trish Ogden 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you so much for sorting out pool leak. Very professional with excellent communication from your staff. You wouldn't know your team have been here. Highly recommend and again thanks.
  
 
      Posted on Google  
   
   Joe Morrison 
 
 
 
 Trustindex verifies that the original source of the review is Google. 100% Plumbing & Construction combines skilled craftsmanship with years of experience to deliver outstanding results for residential and commercial clients.
  
 
      Posted on Google  
   
   Pauline Gale 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a water leak outstanding for around 10 days which my gardener had seen so I contacted 100% Plumbing who made arrangements for someone to arrive at 8'30am - the plumber arrived spot on 8'30am, saw the problem and immediately repaired the leak with metal materials rather than the plastic which was in situ. Thank you all for the swift action in getting my problem sorted, I will be using your services again
  
 
      Posted on Google  
   
   Alvin van Sande 
 
 
 
 Trustindex verifies that the original source of the review is Google. I can highly recommend this company. They are easy to reach, respond quickly to messages, and do their best to schedule an appointment quickly. And above all, they deliver very good work!
  
 
      Posted on Google  
   
   Alfred Hampp 
 
 
 
 Trustindex verifies that the original source of the review is Google. Ich hatte in La Fustera ein Problem mit dem Überlaufventil des Boilers. Der Kontakt mit 100% Plumbing & Construction lief komplett unkompliziert über WhatsApp. Innerhalb eines Tages wurde ein Mitarbeiter geschickt, der das Problem zunächst behob und sich – obwohl er schon im Auto saß – sofort erneut kümmerte, als es kurz darauf wieder auftrat. Er fand die eigentliche Ursache (ein sehr alter Druckreduzierer am Wassereingang) und erklärte transparent, dass dafür anderes Material nötig sei. Wir vereinbarten einen Termin für die nächste Woche. Da ich nicht vor Ort war, koordinierte ich alles über meine Nachbarin – absolut problemlos. Der Mitarbeiter war pünktlich, zuverlässig und wollte die Nachbarin nicht stören, also brachte er sogar eine Leiter mit, um über das Tor zu kommen. Die Reparatur dauerte rund zwei Stunden. Er dokumentierte alles mit Fotos und erklärte genau, was gemacht wurde. Das Ergebnis: sauber, professionell, kundenorientiert. Man sah hinterher nicht einmal, dass jemand gehämmert oder gearbeitet hatte. Fazit: schnelle Hilfe, sehr sauber gearbeitet, extrem zuverlässig und absolut vertrauenswürdig.Klare 5 Sterne.
  
 
      Posted on Google  
   
   Andrew Shipp 
 
 
 
 Trustindex verifies that the original source of the review is Google. Called 100% to help find and fix a water leak on our property.   Great service as leak was hard to find, but fixed and repair work done to a high standard. Also used them to fit new radiators in our house, and again very happy with the service provided.  Highly recommended
  
 
      Posted on Google  
   
   Bigie Rosewall 
 
 
 
 Trustindex verifies that the original source of the review is Google. I was looking for an air conditioning service to replace my 10 year old ones and found the perfect solution with 100%Pluming. I contacted them by WhatsApp, got the proposal right away, Mike came to look at the job and explained everything. The units had to be ordered because we wanted special ones. After they arrived we got them delivered and mounted in one day. They did a fantastic job and we highly recommend them.
  
 
      Posted on Google  
   
   Kerstin Becker 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had a problem with our water tank and received excellent help! The service was very friendly, fast, and highly professional. We would especially like to highlight Tom – he was incredibly friendly and truly competent. The company works in a professional, reliable, and solution-oriented way. We felt very well taken care of throughout the entire process. We would definitely use this company again and can highly recommend them!
  
 
  
  
 
     Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

Comprehensive Plumbing, Hot Water & AC Services

At 100% Plumbing, we deliver far more than just general plumbing. From water heater breakdowns to complete air conditioning installs, our team is ready to help you upgrade your home’s comfort systems.

Repairs, Maintenance & Reliable Service

We respond quickly to plumbing and hot water issues, getting you back to normal with minimal disruption. Whether it’s a leak or a failed water heater, our team is just a call away.

Hot Water & Air Conditioning Installations

We install electric, gas, solar, and aerothermal hot water systems—and help you choose the best solution for your needs.

When it comes to air conditioning, we provide a comprehensive service, starting with a property survey to assess requirements. We install:

Split units – fast and ideal for single rooms.
Multi-split systems – great for multiple zones with one outdoor unit.
Ducted air conditioning – for clean, centralised cooling or heating, requiring ducts and sometimes false ceilings.

We handle every detail, including electrical work, ducting and finishes.

Why Choose 100% Plumbing?

Because you deserve a team that doesn’t just fix problems—but prevents them. With expert installs, thorough planning and responsive support, we make home comfort simple.