high rise commercial caulking contractor


Proudly Serving Los Angeles and the Surrounding Areas

Waterproofing windows is much less expensive than replacement or new window installation. RayAccess has applied window waterproofing to all kinds of substrates protecting windows in private homes, office buildings, residential complexes, and commercial storefronts.

Due to our deep experience working with all kinds of buildings throughout Los Angeles, our staff is skilled at procurement and selecting the appropriate sealant for each individual job. In addition, RayAccess crews are uniquely skilled at safely accessing high and hard-to-reach windows and keeping them waterproofed.

RayAccess is a 5 star rated Los Angeles based exterior building maintenance contractor ready to serve. We are state licensed, fully insured, and certified by rope access governing bodies that include IRATA & SPRAT. Protect your property with RayAccess waterproofing services and contact us today!

Waterproofing services we provide:

Building owners spend billions of dollars each year dealing with the consequences of water damage.

Leaking Window Frames? Here’s What We Do

Our team will walk you through the different tests and inspections to confirm your window frames are indeed leaking. We then provide our recommendation to solve any potential water damage issues. 

Our multi-step window waterproofing process: 

Old Sealant Removal:

Not all sealants adhere to each other therefore we must fully remove old sealants. 

Grease Removal:

To prevent adhesion failure with substrate any grease or loose contaminants is removed by one of our technicians, using a solvent wipe followed by a clean dry wipe.

Surface Preparation:

To confirm new window sealant is applied with respect to maximum joint movement capacity, we may need to install a backers rod.

Caulking (sealant) Application:

We apply sealant via an application gun with a specific nozzle to match the width of the joint.


We use a special spatula for tooling, to form the recommended hourglass shape for best adhesion and aesthetic. 

Window Waterproofing Is Much Less Expensive Than Replacement:

Once your window frames start to deteriorate you are at risk of needing new windows. Last thing you want is water getting trapped inside the frame. Overtime water causes corrosion and installing new full frame windows is very expensive! Keep window frames protected with caulk and prevent water from collecting inside your window frames. 

4 Reasons Why Window Leaks Occur:

  1. Deteriorated or shrank rubber gaskets
  2. Missing, expired, or cracked sealant on window joints and fasteners 
  3. Improper sealant application or deficient preparation by a contractor with breaks in the flashing
  4. Lack of overhangs on the roof and improperly angled fascia board above the window

Consequences of Water Damage:

Water damage is very common with all kinds of problems including mold, corrosion, fire hazards, unwanted pests, expensive energy bills, and property damage.  According to Triple-I [1], about two percent of insured homes file a property damage claim caused by water damage. 

Window Flashing and How It Prevents Water Leaks:

Flashing is an important part of the window installation process. Window flashing is the layering of metal sheets where each successive layer overlaps the layer beneath. Similar to roof shingles, this system directs the flow of water down and away from the inside of your house or building. If water is leaking into your property from the windows, there is a definite possibility that flashing was installed incorrectly. 

Though replacing the window caulking can fix a leak there is always a chance that the flashing needs to be replaced. Only a licensed window installation company should do this job.

Correct Application Is Needed For Sealants To Work:

It’s very common that property managers have a hard time choosing a good and reliable waterproofing contractor. Each type of window joint requires the appropriate sealant to make the area watertight and airtight. A good contractor knows which sealants will achieve the best results for each specific environment, and does not skip out on any steps in the application process. Exterior surfaces of buildings expand and contract with the change in temperature. Therefore a flexible sealant is needed to allow this deformation, and at the same time, protect against leaks.

Alternative Services:

Highlights of Hiring RayAccess for Window Waterproofing:

Rope Access Certified: 

RayAccess technicians are seasoned rock climbers with certifications (IRATA/SPRAT) in industrial rope access. We are able to safely waterproof windows with difficult access.

Procurement Expertise: 

Due to cross-trade training and experience working on unique building architecture RayAccess technicians have knowledge in cleaning, painting, and caulking a large number of window frames and building substrates. We are familiar with sealant product warranties and fully capable in selecting the appropriate sealant type for each unique project.

Professional Contractor: 

With over 10 years experience serving Los Angeles, we are an established exterior building maintenance company. RayAccess is licensed & fully insured. Our crews are trained to wear booties when working inside your home, maintaining social distancing and mask wearing in accordance with CDC recommendations.


  1. III Insurance Information Institute. 2018. Facts + Statistics: Homeowners and renters insurance. https://www.iii.org/fact-statistic/facts-statistics-homeowners-and-renters-insurance




What People Are Saying

  • On behalf of 1033 Ocean Ave HOA, I would like to thank RayAccess for a great job in cleaning and restoring the exterior of our building. Utilizing your rope access system saved our Association much in costs and we are glad to have avoided the need to erect scaffolding to perform the work. Sergey and his crew were very professional and communicated well during the project.

    Susan L. 1033 Ocean Ave HOA Board
  • "Great job in washing our building! Very professional team."

    Luis P. DoubleTree by Hilton Los Angeles / Director of Engineering
  • "Thanks so much for the great work! The windows look perfect"

    Alex R. Fisch Properties / Property Manager
  • "Great job at a great price! Had them come in to clean our building and were able to reach the high windows with no problem! Called for a free estimate, they came that same day and then came to clean to the next day! Friendly staff as well!"

    Sugar B. Playa Vista Community
  • Thank you so much for cleaning windows at our building. The tenants are so happy! They can finally see what's outside their windows!

    Ismael S SouthPark Group/ Property Manager
  • I'm really happy with work RayAccess did for us on painting the exterior of Loews atrium. At first, I though it would be a nightmare project because of old paint condition and difficult access to some areas. But it turned out to be a very professional and smooth job! Thank you.

    Rex U. Loews Hotel/ Director of Engineering
  • RayAccess painted our outdoor movie screen on a high-rise building in Downtown LA. With their Rope Access method, they saved us thousands of dollars in bringing a huge lift and blocking almost entire street. The job was done perfectly! Thank you so much!

    Emily W. Rooftop Cinema/ Head of Design & Production

Window Waterproof Service Area

RayAccess, Inc. provides Window Caulking & Waterproofing Services at following areas: Los Angeles County (including Santa Monica, Beverly Hills, West Hollywood, Hollywood, Downtown Los Angeles, Glendale, Santa Clarita, Burbank, San Fernando, Pasadena, Culver City, Marina del Rey, Playa del Rey, El Segundo, Long Beach, Redondo Beach, Torrance, City of Commerce), Orange County (including Anaheim, Santa Ana, Fullerton), Riverside County (including Ontario, Riverside, Cabazon, Palm Springs), San Bernardino County (including Fontana, San Bernardino), San Diego County.

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