Mobile RV Service in Simcoe County and surrounding area

THE FINE PRINT: Please note that we do not provide motorhome automotive chassis service, such as oil changes and tune-ups.

Because we are a mobile service, we are not equipped to do structural repairs, such as replacing or rebuilding floors, walls or roof.

We do not perform insurance propane inspections.

A service call charge will apply, based on the distance from our location, to offset our time and cost of travel, except for calls within BARRIE KOA

COVID policy

We are permitted to operate under the current lockdown regulations, as a business engaged in "Vehicle and Equipment Maintenance". We will require that you observe social distancing during service calls, and if we need to enter your RV, we will require that you not be inside at the same time. In this way we can all remain safe!

Our Services

We are a mobile-only service, and do not have a shop location. There is no need for you to bring your RV to a shop. We come to your location and perform the service there. 100% customer satisfaction is our goal.

HST is additional on any prices stated.

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©2020 by Huronwoods RV Service, div. of Ontario Automation Services


RVs use a mix of 120 volt AC and 12 volt DC systems, and it is said that "never the two should meet". The 12 volt system in particular, can develop problems which can seem baffling. In these cases, an engineering "problem solving" approach is needed.


We have 40 years of experience in Industrial Electrical Engineering, and we have the right tools and expertise for both the 120 volt and 12 volt systems. Call the pros at Huronwoods RV Service today. We know how to track down and solve electrical problems.

Inspection services

If you are thinking of buying or selling a used RV, we can perform a complete inspection of all systems, and provide a written status report.

If you are buying the rig, it gives peace-of-mind, and if you are selling, it gives the buyer confidence and possibly increases the selling price of your RV.

Cost of a complete inspection is $147. A service call charge may apply depending on distance.


RV plumbing systems are specialized, and quite different compared to residential systems. We have the tools and expertise to quickly repair leaks, replace faucets, and make modifications.

Because of the way most RVs are mass-produced, the type of materials used and the speed of the original installation often leads to annoying water leaks, even in newer units. For example, the cheap plastic PEX fittings used by most manufacturers can result in a slow drip at the fitting. We use brass PEX fittings for trouble-free performance.


We have the expertise to repair all RV appliances. Water heater, furnace, refrigerator, air conditioner, RV washing machine. We bring 40 years of experience in Industrial Automation diagnostics and troubleshooting to the table. We replace parts only when necessary.

Awning service

We can repair or replace your patio awning or slide-topper awnings. We can supply and install new fabric, and replace bent or broken parts on power or manually-operated awnings.

Roof service

Your RV rubber roof requires regular inspection and maintenance to keep it in good condition and leak-free. We recommend an annual inspection and re-caulking as necessary. We use the correct sealants recommended by the rubber roof manufacturer. Cost of a roof inspection, including minor caulking, is $98. Half a tube of sealant is included, if more is required it is at additional cost. A service call charge may apply depending on distance. Roof leaks due to cracked and weathered sealant may result in water leaking into the walls, resulting in expensive, difficult-to-repair damage.

We can replace roof vents and plumbing vent caps, as shown in the picture.

Slideout service and repair

We repair and adjust slideout mechanisms. Correct operation of slidouts is essential to keeping rainwater out of your RV. We can repair or replace slide drive motors and the associated electrics.

Trailer brake and bearing service

Brake and bearing maintenance for fifthwheel and travel trailers is the key to trouble-free driving on the highway. We have a Class A mechanic on staff to provide this essential service at your location.

The consequences of a bearing failure while driving are usually expensive, often requiring axle replacement, and can be dangerous to yourself and other road users. See here for pictures of a typical bearing failure caused by lack of lubrication.

As part of this service, we fully inspect all critical components, and check the operation of each brake. It is surprising how many towables have one or more non-functioning brakes, compromising your ability to stop in an emergency situation.

Our price for bearing maintenance is $110 per wheel. This includes the following: (service call charge may be extra)

- Complete disassembly and cleaning of the hub and bearings

- Inspection of bearing cages and races

- Inspection of brake shoes and brake drum

- Pack bearings with premium wheel bearing grease

- Install a new double-lip quality grease seal

- Reassemble the hub and set bearing preload to factory specs

- Adjust brakes, and check electric brake operation at each wheel

- Torque lug nuts to factory specs

This work is done by a licensed Class A automotive technician.

If required, replacement bearings and brake shoes are additional.


Winterizing services

Winterizing the freshwater and wastewater systems is essential if your RV is going to remain in the northern part of the continent after about November 1. We have lots of experience winterizing rigs ranging from 18 foot travel trailer to 45 foot luxury motorhomes.

We use environmentally-friendly non-toxic antifreeze. We favour this method over the old-school "blowing-out the system" with compressed air, because once the water system is full of antifreeze, there is absolutely no chance of residual water collecting in low points of the plumbing system, and causing expensive damage. Rubber seals and washers can dry out when the compressed air method is used. Antifreeze keeps them in good condition.

We leave your RV ready to start up in the spring, so all you need to do is connect to fresh water and flush the antifreeze from the system, making sure the water heater fills with water prior to turning it on.

These are our winterizing prices. HST is extra, and a service call charge may apply, depending on the distance from Craighurst.

Standard winterizing: $98

Extra for dishwasher or washing machine: $45 per appliance


The above prices assume that there is a winterizing bypass already installed on the water heater, and that the bypass is in an operable condition. Almost all rigs built in the last 20 years have this bypass. If there is no bypass, or the bypass valves are seized and inoperable, there is a charge of $80 to supply and install a new bypass system.

Please note that this is a winterizing service only. It is not a so-called "trailer closing" service, and does not include putting in slideouts, cleaning the slideout roof of leaves and debris, disconnecting batteries, storing hoses, etc.

Winterizing of park models without a water pump: $129


Residential refrigerator conversion

RV refrigerators operate using a cooling principle called "absorption".

The energy source for the cooling is either propane gas, or 120 volts when the RV is connected to shore power. Changeover between these two energy sources is automatic, depending on the availability of 120 volt power. When running on propane, 12 volt battery power is still required for the controls.

Although the ability to use two energy sources is convenient, absorption fridges suffer from three disadvantages.

1) Their reliability is often questionable, specially in the larger capacities like 12 cu.ft. used in large motorhomes and fifthwheels.

2) The cooling performance is not nearly as good as a conventional compressor-operated residential fridge. In hot weather, they can struggle to keep the contents cold, and they can take many hours to cool down after a load of groceries are put inside.

3) They are very expensive compared to a residential fridge, costing up to three times as much.

For the reasons stated above, many manufacturers of larger RVs now offer a residential fridge installation either as standard, or optional. 

The disadvantage of a compressor-type residential fridge is that they require 120 volt power to operate. When connected to shore power, this is obviously not an issue, but when traveling or dry camping, this needs to be addressed. Fortunately, there is a device called an inverter, which can supply 120 volts to run the fridge from the 12 volt battery supply. When towing a trailer or driving the motorhome, the batteries are constantly replenished from the tow vehicle or motorhome engine, but when dry camped, sufficient battery capacity is required to run the fridge for a reasonable amount of time.

If you do a lot of dry camping for extended periods, a regular RV fridge is your best choice. If like most RVers you almost always stay at a campground with shore power, a residential installation is a very attractive option.

Huronwoods RV Service has done a number of residential fridge conversions, along with adding battery capacity, inverter installation and all of the required wiring. In most cases the overall cost including a good-quality residential fridge, is much less than the replacement cost for a failed RV-type refrigerator.

Talk to us about your requirements. We will be happy to discuss the feasibility of an installation.

Original RV fridge installed in fifthwheel

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Residential Samsung fridge installed


30 amp to 50 amp conversion

Smaller RVs, which includes almost all travel trailers, fifthwheels up to about 34 feet, and almost all Class C motorhomes, are equipped with a 30 amp shore power electrical system. Larger fifthwheels and larger Class A motorhomes have a 50 amp system. One may think when comparing the load capacities that a 50 amp system is 1.66 times more capacity than a 30 amp system - but this is not the case! A 50 amp service uses a 4 wire supply (ground, neutral, 2 live conductors), and each of the live conductors is rated at 50 amps, giving a total capacity of 100 amps at 120 volts. So a so-called 50 amp RV service is actually 3.33 times more capacity than a 30 amp.

Capacity becomes an issue when you have two roof air conditioners, or if you use the RV for extended stays where you may want to use multiple heat-producing appliances (microwave, toaster, electric kettle, griddle, toaster oven, electric water heater) without worrying about tripping circuit breakers. A 50 amp (100 amp!) service can really enhance the enjoyment of your rig.

In many cases, it is possible to replace your existing shore power distribution panel with a 50 amp panel. The shore power cord will also need to be replaced, and we use a detachable 50 amp power cord which can be disconnected and stored in the cargo bay. We have done several of these conversions, and it is a worthwhile investment if, like many, you use your RV as a weekend "cottage", or even a summer retirement home.

We can do an inspection to determine feasibility, and provide you with a quotation to do this conversion. Of course, you must have a 50 amp outlet available in your RV park to take advantage of this conversion.

30 amp 3 wire vs 50 amp 4 wire park receptacles

Typical RV 30 amp panel. Note the single 30 amp main breaker

Typical 50 amp panel. Note that there are 2x50 amp main breakers